Junior Engineer Mechanical Practice Paper 1 - Time 2 Hours

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Subject	Question No.
Reasoning	1 -50
General Awareness	51 - 100
Mechanical - Technical	101 - 200

Time Limit - 2 Hours

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Question 1 of 200

1. Question
1 points
How many meaningful English words can be formed with the letters NKI using each letter only once in each word?
- None
- One
- Two
- Three
- More than three
Correct

Meaningful English words are INK, KIN.

Incorrect

Meaningful English words are INK, KIN.
Question 2 of 200

2. Question
1 points
The positions of first and the fourth letters of the word POUNDS are interchanged, similarly, the positions of second and fifth letters and third and sixth letters are interchanged. In the new arrangement thus formed, how many letters are there between the alphabet which is third from the right and the alphabet which is third from the left, in the English alphabetical order?
- None
- Two
- Three
- Four
- More than four
Correct

Given word = POUNDS
After interchanged, new word =NDSPOU
Hence, two letters (Q, R) are between the alphabet third from the right (P) and third from the left (S).

Incorrect

Given word = POUNDS
After interchanged, new word =NDSPOU
Hence, two letters (Q, R) are between the alphabet third from the right (P) and third from the left (S).
Question 3 of 200

3. Question
1 points
Point A is 5 m towards the West of point B. Point C is 2 m towards the North of point B. Point D is 3 m towards the East of point C. Point E is 2 m towards the South of point D.

If a person walks 2 m towards the north from point A, takes a right turn and continues to walk, which of the following points would he reach the first?
- D
- B
- E
- C
- Cannot be determined
Correct

Incorrect
Question 4 of 200

4. Question
1 points
Point A is 5 m towards the West of point B. Point C is 2 m towards the North of point B. Point D is 3 m towards the East of point C. Point E is 2 m towards the South of point D.

Which of the following points are in a straight line?
- ABE
- DCA
- CED
- BDA
- ACE
Correct

Incorrect
Question 5 of 200

5. Question
1 points
The following questions are based upon the alphabetical series given below :

D L U A E N I O G K S V R M P B H F

If 'LU' is related to 'EO' and 'SV' is related to 'MH' in a certain way, to which of the following is NI related to , following the same Pattern?
- GS
- KV
- GV
- KR
- OS
Correct

Incorrect
Question 6 of 200

6. Question
1 points
The following questions are based upon the alphabetical series given below :

D L U A E N I O G K S V R M P B H F

What will come in place of question (?) mark in the following series based on the above alphabetical series?
- AP
- NP
- UH
- AB
- UB
Correct

Incorrect
Question 7 of 200

7. Question
1 points
The following questions are based upon the alphabetical series given below :

D L U A E N I O G K S V R M P B H F

If in a certain code'GLAD'is coded as'SANU'and'BUMP' is coded as 'FEBH'how will'SKID'be coded in the same code language?
- GOEU
- RVGU
- VSOU
- VSGU
- RVOL
Correct

Incorrect
Question 8 of 200

8. Question
1 points
Among five boxes numbered 1,,2,3,4 and 5 each has a different weight. Box no. 1 is heavier than box no' 5 but lighter than box no. 3. Box no. 4 is heavier than box no.3 but lighter than box no. 2. Which of the following represents the boxes which are the heaviest and the lightest respectively?
- Box no. 4 and box no. 5
- Box no. 4 and box no. 1
- Box no. 2 and box no. 1
- Box no. 2 and box no. 5
- Box no. 5 and box no. 4
Correct

Box no.2 > Box no.4 > Box no.3 > Box no. 1 > Box no.5

Hence, Box no. 2 is the heaviest and Box no. 5 is the lightest.

Incorrect

Box no.2 > Box no.4 > Box no.3 > Box no. 1 > Box no.5

Hence, Box no. 2 is the heaviest and Box no. 5 is the lightest.
Question 9 of 200

9. Question
1 points
If each of the alphabets of the word SALIENT is arranged in alphabetical order from left to right and then, each vowel in the new word thus formed is changed to the next letter in the English alphabetical series and each consonant is changed to the previous letter in the English alphabetical series. Which of the following will be third from the left?
- M
- I
- J
- K
- R
Correct

Incorrect
Question 10 of 200

10. Question
1 points
How many such pairs of letters are there in the word QUICKLY, each of which has as many letters between them in the word {in both forward and backward directions) as they have between them in the English alphabetical order?
- None
- One
- Two
- Three
- More than three
Correct

Incorrect
Question 11 of 200

11. Question
1 points
In these questions, relationship between different elements is shown in the statements.The statements are followed by conclusions.

Statement F≥G=H; G> J≥K
Conclusions I.F≥K
II.K<H
- if only Conclusion I is true
- if only Conclusion II is true
- if either Conclusion I or II is true
- if neither Conclusion I nor II is true
- if both Conclusions I and II are true
Correct

statement F≥G=H; G > J≥K
Conclusions I. F≥K (False)
II.K<H(True)
Hence, only conclusion II is definitely true.

Incorrect

statement F≥G=H; G > J≥K
Conclusions I. F≥K (False)
II.K<H(True)
Hence, only conclusion II is definitely true.
Question 12 of 200

12. Question
1 points
In these questions, relationship between different elements is shown in the statements. The statements are followed by conclusions.

Statement P < Q = R ≥ T; S ≥ T

Conclusions I .T ≤ Q

II. R > P
- if only Conclusion I is true
- if only Conclusion II is true
- if either Conclusion I or II is true
- if neither Conclusion I nor II is true
- if both Conclusions I and II are true
Correct

Statement P < Q = R ≥ S ≥ T
Conclusions I. T ≤ Q (True) II. R > P (True)
Hence, both conclusions are definitely true.

Incorrect

Statement P < Q = R ≥ S ≥ T
Conclusions I. T ≤ Q (True) II. R > P (True)
Hence, both conclusions are definitely true.
Question 13 of 200

13. Question
1 points
In these questions, relationship between different elements is shown in the statements. The statements are followed by conclusions.

Statement A ≤ B <C ; A ≥ D ; C ≤ F
Conclusions I .D < C
II. F ≥ D
- if only Conclusion I is true
- if only Conclusion II is true
- if either Conclusion I or II is true
- if neither Conclusion I nor II is true
- if both Conclusions I and II are true
Correct

Statement A ≤ B <C ; A ≥ D; C ≤ F
Conclusions I .D < C (True)II. F ≥ D (False)
Hence, only conclusion I is definitely true.

Incorrect

Statement A ≤ B <C ; A ≥ D; C ≤ F
Conclusions I .D < C (True)II. F ≥ D (False)
Hence, only conclusion I is definitely true.
Question 14 of 200

14. Question
1 points
In these questions, relationship between different elements is shown in the statements.The statements are followed by conclusions.

Statement U > A = I ≤ O ≤ E

Conclusions I. I ≤ E
II. o > U
- if only Conclusion I is true
- if only Conclusion II is true
- if either Conclusion I or II is true
- if neither Conclusion I nor II is true
- if both Conclusions I and II are true
Correct

Statement U > A = I ≤ O ≤ E

Conclusions I. I ≤ E (False)
II. o > U (False)
Hence, only conclusion I is definitely true.

Incorrect

Statement U > A = I ≤ O ≤ E

Conclusions I. I ≤ E (False)
II. o > U (False)
Hence, only conclusion I is definitely true.
Question 15 of 200

15. Question
1 points
In these questions, relationship between different elements is shown in the statements.The statements are followed by conclusions.

Statement L= M ≥N; M > P; L < K

Conclusions I. K>P
II. N<K
- if only Conclusion I is true
- if only Conclusion II is true
- if either Conclusion I or II is true
- if neither Conclusion I nor II is true
- if both Conclusions I and II are true
Correct

Statement L= M ≥N; M > P; L < K

Conclusions I. K>P(False)
II. N<K(True)

Hence, only conclusion II is definitely true.

Incorrect

Statement L= M ≥N; M > P; L < K

Conclusions I. K>P(False)
II. N<K(True)

Hence, only conclusion II is definitely true.
Question 16 of 200

16. Question
1 points
Study the following information to answer the given questions:

P, Q, R, S, T, V, X and Y are seated in a straight line facing North. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.

What is the position of Q with respect to P ?
- Fifth to the right
- Immediate neighbour
- Second to right
- Third to left
- None of these
Correct

Second to right

Incorrect

Second to right
Question 17 of 200

17. Question
1 points
Study the following information to answer the given questions:

P, Q, R, S, T, V, X and Y are seated in a straight line facing North. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.

Which of the following represents persons seated at the two extreme ends of the line?
- P, V
- Y, S
- R, V
- Y, P
- R, Y
Correct

R, Y

Incorrect

R, Y
Question 18 of 200

18. Question
1 points
Study the following information to answer the given questions:

P, Q, R, S, T, V, X and Y are seated in a straight line facing North. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.

How many persons are seated between R and T ?
- One
- Two
- Three
- Four
- None
Correct

Three (P, S, Q)

Incorrect

Three (P, S, Q)
Question 19 of 200

19. Question
1 points
Study the following information to answer the given questions:

P, Q, R, S, T, V, X and Y are seated in a straight line facing North. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.

If P is related to Q and S is related to T in a certain way, to which of the following would V be related to following the same pattern?
- Y
- P
- R
- S
- X
Correct

Y (Second Person seated second to the right of first Person)

Incorrect

Y (Second Person seated second to the right of first Person)
Question 20 of 200

20. Question
1 points
Study the following information to answer the given questions:

P, Q, R, S, T, V, X and Y are seated in a straight line facing North. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.

Who amongst the following sits exactly in the middle of the persons who sit second from the left and the person who sits fifth from the right?
- V
- Q
- T
- S
- P
Correct

Incorrect
Question 21 of 200

21. Question
1 points
Study the following information to answer the given questions :

In a certain code, 'he is waiting there' is written as 'la pa ro ta', 'there is the train' is written as 'zo ro ji la', 'waiting at the station' is written as 'ma ta fu ji' and 'is this a station' is written as 'fu bi ro vi'.

What is the code for'he'?
- la
- pa
- ro
- ta
- Either la or zo
Correct

he $\rightarrow$ pa

Incorrect

he $\rightarrow$ pa
Question 22 of 200

22. Question
1 points
Study the following information to answer the given questions :

In a certain code, 'he is waiting there' is written as 'la pa ro ta', 'there is the train' is written as 'zo ro ji la', 'waiting at the station' is written as 'ma ta fu ji' and 'is this a station' is written as 'fu bi ro vi'.

What does 'la' stand for?
- is
- train
- waiting
- the
- there
Correct

la $\rightarrow$ there

Incorrect

la $\rightarrow$ there
Question 23 of 200

23. Question
1 points
Study the following information to answer the given questions :

In a certain code, 'he is waiting there' is written as 'la pa ro ta', 'there is the train' is written as 'zo ro ji la', 'waiting at the station' is written as 'ma ta fu ji' and 'is this a station' is written as 'fu bi ro vi'.

Which of the following represents 'the train station'?
- zo la ma
- fu ji ta
- fu ji zo
- ro zo fu
- Cannot be determined
Correct

the $\rightarrow$ ji, train $\rightarrow$ zo, station $\rightarrow$ fu
Hence, 'the train station' $\rightarrow$ ji zo fu or fu ji zo

Incorrect

the $\rightarrow$ ji, train $\rightarrow$ zo, station $\rightarrow$ fu
Hence, 'the train station' $\rightarrow$ ji zo fu or fu ji zo
Question 24 of 200

24. Question
1 points
Study the following information to answer the given questions :

In a certain code, 'he is waiting there' is written as 'la pa ro ta', 'there is the train' is written as 'zo ro ji la', 'waiting at the station' is written as 'ma ta fu ji' and 'is this a station' is written as 'fu bi ro vi'.

What is the code for'at'?
- ma
- ji
- fu
- ta
- Cannot be determined
Correct

at $\rightarrow$ ma

Incorrect

at $\rightarrow$ ma
Question 25 of 200

25. Question
1 points
Study the following information to answer the given questions :

In a certain code, 'he is waiting there' is written as 'la pa ro ta', 'there is the train' is written as 'zo ro ji la', 'waiting at the station' is written as 'ma ta fu ji' and 'is this a station' is written as 'fu bi ro vi'.

Which of the following may represent 'guard is waiting'?
- ro ta zo
- ta ki ro
- fu zo ki
- ta ro ji
- la ma ro
Correct

is $\rightarrow$ ro. waiting $\rightarrow$ ta
Hence, 'guard is waiting' $\rightarrow$ ki or ta or ta vi ro

Incorrect

is $\rightarrow$ ro. waiting $\rightarrow$ ta
Hence, 'guard is waiting' $\rightarrow$ ki or ta or ta vi ro
Question 26 of 200

26. Question
1 points
Study the following information carefully and answer the given questions :
A, B, C, D, E, F, G and H are sitting around a square table facing the centre in such a way that four of them sit at four corners of the square while four sit in the middle of each of the flour sides.

(a) A sits second to right of F. F sits in the middle of one of the sides of the table
(b) G who does not sit at any of the corners of the table sits second to the right of D
(c) Only two people sit between D and B (taken from one side)
(d) C is not an immediate neighbour of G
(e) H is sits second to left of B
(f) E is not an immediate neighbour of G or F

Who sits exactly between F and A?
- B
- C
- E
- H
- None of these
Correct

Incorrect
Question 27 of 200

27. Question
1 points
Study the following information carefully and answer the given questions :
A, B, C, D, E, F, G and H are sitting around a square table facing the centre in such a way that four of them sit at four corners of the square while four sit in the middle of each of the flour sides.

(a) A sits second to right of F. F sits in the middle of one of the sides of the table
(b) G who does not sit at any of the corners of the table sits second to the right of D
(c) Only two people sit between D and B (taken from one side)
(d) C is not an immediate neighbour of G
(e) H is sits second to left of B
(f) E is not an immediate neighbour of G or F

How many persons sit between A and H when counted in anti-clockwise direction from A?
- None
- One
- Two
- Three
- Four
Correct

Incorrect
Question 28 of 200

28. Question
1 points
Study the following information carefully and answer the given questions :
A, B, C, D, E, F, G and H are sitting around a square table facing the centre in such a way that four of them sit at four corners of the square while four sit in the middle of each of the flour sides.

(a) A sits second to right of F. F sits in the middle of one of the sides of the table
(b) G who does not sit at any of the corners of the table sits second to the right of D
(c) Only two people sit between D and B (taken from one side)
(d) C is not an immediate neighbour of G
(e) H is sits second to left of B
(f) E is not an immediate neighbour of G or F

Four of the following five are alike in a certain way based on their seating positions in the above arrangement and so form a group. Which is the one that does not belong to that group?
- D
- F
- A
- E
- G
Correct

(All others sit middle of the each side)

Incorrect

(All others sit middle of the each side)
Question 29 of 200

29. Question
1 points
Study the following information carefully and answer the given questions :
A, B, C, D, E, F, G and H are sitting around a square table facing the centre in such a way that four of them sit at four corners of the square while four sit in the middle of each of the flour sides.

(a) A sits second to right of F. F sits in the middle of one of the sides of the table
(b) G who does not sit at any of the corners of the table sits second to the right of D
(c) Only two people sit between D and B (taken from one side)
(d) C is not an immediate neighbour of G
(e) H is sits second to left of B
(f) E is not an immediate neighbour of G or F

What is the position of F with respect to C?
- Third to the left
- Immediate to the right
- Second to the left
- Third to the right
- Immediate to the Ieft
Correct

Incorrect
Question 30 of 200

30. Question
1 points
Study the following information carefully and answer the given questions :
A, B, C, D, E, F, G and H are sitting around a square table facing the centre in such a way that four of them sit at four corners of the square while four sit in the middle of each of the flour sides.

(a) A sits second to right of F. F sits in the middle of one of the sides of the table
(b) G who does not sit at any of the corners of the table sits second to the right of D
(c) Only two people sit between D and B (taken from one side)
(d) C is not an immediate neighbour of G
(e) H is sits second to left of B
(f) E is not an immediate neighbour of G or F

What will come in place of the question mark (?) based upon the given seating arrangement?
AE EH HF?
- FE
- HC
- FD
- DB
- FH
Correct

One more person sits in each successive pair of person.

Hence, three persons (C, A, E) are sitting between F and D.

Incorrect

One more person sits in each successive pair of person.

Hence, three persons (C, A, E) are sitting between F and D.
Question 31 of 200

31. Question
1 points
Study the following arrangement carefully and answer the questions given below :

7 1 2 8 2 5 2 7 5 6 4 9 1 9 2 4 1 4 6 4 5 3 2 6 3 7 8 5 1 3 1 5 8 2 7

How many such 5s are there in the above arrangement each of which is immediately preceded and also immediately followed by an even digit?
- None
- one
- Two
- Three
- More than three
Correct

One (2 5 2)

Incorrect

One (2 5 2)
Question 32 of 200

32. Question
1 points
Study the following arrangement carefully and answer the questions given below :

7 1 2 8 2 5 2 7 5 6 4 9 1 9 2 4 1 4 6 4 5 3 2 6 3 7 8 5 1 3 1 5 8 2 7

If all the even digits are deleted from the above arrangement, which of the following will be eighth from the right end of the arrangement?
- 1
- 7
- 9
- 5
- 3
Correct

After deleting all the even digits, the new arrangement is

Incorrect

After deleting all the even digits, the new arrangement is
Question 33 of 200

33. Question
1 points
Study the following arrangement carefully and answer the questions given below :

7 1 2 8 2 5 2 7 5 6 4 9 1 9 2 4 1 4 6 4 5 3 2 6 3 7 8 5 1 3 1 5 8 2 7

How many such 2s are there in the above arrangement, each of which is immediately preceded by a perfect square? (1 is also a perfect square)
- None
- One
- Two
- Three
- More than three
Correct

Two (1 2, 9 2)

Incorrect

Two (1 2, 9 2)
Question 34 of 200

34. Question
1 points
Study the following arrangement carefully and answer the questions given below :

7 1 2 8 2 5 2 7 5 6 4 9 1 9 2 4 1 4 6 4 5 3 2 6 3 7 8 5 1 3 1 5 8 2 7

What is the difference between the digit which is seventh from the left end and the digit which is eleventh from the right end of the arrangement?
- 0
- 1
- 2
- 3
- 5
Correct

Required difference =2 - 3
≈1

Incorrect

Required difference =2 - 3
≈1
Question 35 of 200

35. Question
1 points
Study the following arrangement carefully and answer the questions given below :

7 1 2 8 2 5 2 7 5 6 4 9 1 9 2 4 1 4 6 4 5 3 2 6 3 7 8 5 1 3 1 5 8 2 7

Which of the following is sixth to the left of the twentieth digit from the left end of the above arrangement?
- 1
- 4
- 3
- 9
- 8
Correct

Required digit = ( $20^{th}-6^{th}$ ) from the left or

$14^{th}$ from the left = 9

Incorrect

Required digit = ( $20^{th}-6^{th}$ ) from the left or

$14^{th}$ from the left = 9
Question 36 of 200

36. Question
1 points
Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and

How many brothers does Shilpa have?
I. Deepa who is Shilpa's sister has two siblings.
II. Kaushal is the only son of Deepa's parents.
- if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- if the data in Statement I alone or in Statement II alone are sufficient to answer the question
- if the data in both the Statements I and II are not sufficient to answer the question
- if the data in both the Statements I and II together are necessary to answer the question
Correct

From Statement I, we clearly say that Shilpa has one brother and two sisters, herself and Deepa.

Incorrect

From Statement I, we clearly say that Shilpa has one brother and two sisters, herself and Deepa.
Question 37 of 200

37. Question
1 points
Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and

Amongst four friends A, B, C and D seated in a straight line facing North, who sits to the immediate right of B?
I. A sits third to the right of B and C is not an immediate neighbour of B.
II. C sits to immediate left of A. A sits at one of the extreme ends. D does not sit at the extreme end of the line.
- if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- if the data in Statement I alone or in Statement II alone are sufficient to answer the question
- if the data in both the Statements I and II are not sufficient to answer the question
- if the data in both the Statements I and II together are necessary to answer the question
Correct

From Statement I,

Hence, D sits immediate right of B.

From Statement II,

Hence, D sits immediate right of B.

Incorrect

From Statement I,

Hence, D sits immediate right of B.

From Statement II,

Hence, D sits immediate right of B.
Question 38 of 200

38. Question
1 points
Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and

Which direction is Sudha facing?
I. If Sunny who is currentlly facing West, turns $90^{\circ}$ towards his left, he would face the same direction as Sudha.
II. If Harry who is currently facing East, turns $90^{\circ}$ towards his left, he would face a direction just opposite to the direction Sudha is facing.
- if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- if the data in Statement I alone or in Statement II alone are sufficient to answer the question
- if the data in both the Statements I and II are not sufficient to answer the question
- if the data in both the Statements I and II together are necessary to answer the question
Correct

From Statement I,

Hence, Sudha is facing South direction.

From Statement II

Incorrect

From Statement I,

Hence, Sudha is facing South direction.

From Statement II
Question 39 of 200

39. Question
1 points
Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and

Amongst H, J, K and L sitting around a circular table facing the centre. who sits to the immediate left of H?
I. H sits second to left of L. K is an immediate neighbour of L.
II. J and H are immediate neighbours of each other. L is an immediate neighbour of J.
- if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- if the data in Statement I alone or in Statement II alone are sufficient to answer the question
- if the data in both the Statements I and II are not sufficient to answer the question
- if the data in both the Statements I and II together are necessary to answer the question
Correct

From Statement I,

From the above figure we cannot say who sits immediate left of H.

From Statement II,

From the above figure we cannot find the original position of J and H.
Hence, we cannot say who sits to the immediate left of H.

Incorrect

From Statement I,

From the above figure we cannot say who sits immediate left of H.

From Statement II,

From the above figure we cannot find the original position of J and H.
Hence, we cannot say who sits to the immediate left of H.
Question 40 of 200

40. Question
1 points
Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and

On which day of the week did Kiran take an off?
I. Amit correctly remembers that Kiran took an off before Thursday but after Monday.
II. Sneha correctly remembers that Kiran took an 'off after Tuesday but before Friday.
- if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- if the data in Statement I alone or in Statement II alone are sufficient to answer the question
- if the data in both the Statements I and II are not sufficient to answer the question
- if the data in both the Statements I and II together are necessary to answer the question
Correct

Incorrect
Question 41 of 200

41. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

In each problem figures design ' $\bar{v}$ ' slips $\frac{1}{2}$ place clockwise direction, design 'O' slips $\frac{1}{2}$ place anti-clockwise direction and design ' $\bigstar$ slips $\frac{1}{2}$ place clockwise direction.

Incorrect

In each problem figures design ' $\bar{v}$ ' slips $\frac{1}{2}$ place clockwise direction, design 'O' slips $\frac{1}{2}$ place anti-clockwise direction and design ' $\bigstar$ slips $\frac{1}{2}$ place clockwise direction.
Question 42 of 200

42. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

The sequence ofthe problem figures is

Problem figure (1) to (2)
Problem figure (3) to (a)
Problem figure (5) to answer figure

Incorrect

The sequence ofthe problem figures is

Problem figure (1) to (2)
Problem figure (3) to (a)
Problem figure (5) to answer figure
Question 43 of 200

43. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

In each problem figures one new design adds and after rotating 90' anti-clockwise direction design slips one place anti-clockwise direction.

Incorrect

In each problem figures one new design adds and after rotating 90' anti-clockwise direction design slips one place anti-clockwise direction.
Question 44 of 200

44. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

From problem figure (1) to (2) whole figure rotates $90^{\circ}$ ' anti-clockwise direction and changes its position with a certain rule. Similar rule follows from problem figure (3) to {4) and problem figure (5) to answer figure.

Incorrect

From problem figure (1) to (2) whole figure rotates $90^{\circ}$ ' anti-clockwise direction and changes its position with a certain rule. Similar rule follows from problem figure (3) to {4) and problem figure (5) to answer figure.
Question 45 of 200

45. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

From problem figure (1) to (3) and (3) to (5) letter E comes two place left and other letters have been written in same order. Similar rule follows from problem figure (2) to (4) and (4) to answer figure.

Incorrect

From problem figure (1) to (3) and (3) to (5) letter E comes two place left and other letters have been written in same order. Similar rule follows from problem figure (2) to (4) and (4) to answer figure.
Question 46 of 200

46. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

The sequence of the problem figures is

RS = Reverse same design
S = Same design
Problem figure (1) to (2)
Problem figure (3) to (a)
Problem figure (5) to answer figure

Incorrect

The sequence of the problem figures is

RS = Reverse same design
S = Same design
Problem figure (1) to (2)
Problem figure (3) to (a)
Problem figure (5) to answer figure
Question 47 of 200

47. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

From problem figure (1) to (2), inner and outer small line on hexagon, slips two places clockwise direction and one outer line adds on hexagon with one place ahead of inner small line of hexagon' Similar rule follows from problem figure (3) to (4) and problem figure (5) to answer figure

Incorrect

From problem figure (1) to (2), inner and outer small line on hexagon, slips two places clockwise direction and one outer line adds on hexagon with one place ahead of inner small line of hexagon' Similar rule follows from problem figure (3) to (4) and problem figure (5) to answer figure
Question 48 of 200

48. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

In each problem figure one shaded triangle and one unshaded triangle will be added and change their directions with a certain rule.

Incorrect

In each problem figure one shaded triangle and one unshaded triangle will be added and change their directions with a certain rule.
Question 49 of 200

49. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

In each problem figures three designs get inverted out two times. Lower design has same direction.

Incorrect

In each problem figures three designs get inverted out two times. Lower design has same direction.
Question 50 of 200

50. Question
1 points
In each of the Questions given below which one of the five answer figures on the right should come after the problem figures on the left, if the sequence were continued?
Correct

From problem figure (1) to (2) whole figure rotates $45^{\circ}$ anti-clockwise direction and small inner line on pentagon slips one place anti-clock direction and goes
to outer side on pentagon and one small outer line adds on pentagon with one place ahead of previous small outer line.

Incorrect

From problem figure (1) to (2) whole figure rotates $45^{\circ}$ anti-clockwise direction and small inner line on pentagon slips one place anti-clock direction and goes
to outer side on pentagon and one small outer line adds on pentagon with one place ahead of previous small outer line.
Question 51 of 200

51. Question
1 points
Who among the following has won the women’s singles title of the Hong Kong Open tennis tournament recently?
- Sabine Lisicki
- Karolina Pliskova
- Karin Knapp
- Donna Vekic
- None of these
Correct

Incorrect
Question 52 of 200

52. Question
1 points
The country's first e- cabinet meet was held in which of the following states recently? In this state cabinet meet I-pads and power point presentation replaced the papers.
- Karnataka
- Andhra Pradesh
- Gujarat
- Maharashtra
- None of these
Correct

Incorrect
Question 53 of 200

53. Question
1 points
Indian space agency ISRO is all set to insert Mangalyaan into the Martian orbit on 24 Sep. Which of the following space agencies in the world has/have succeeded in similar attempts so far?
- European Space Agency
- Russian Federal Space Agency
- NASA
- All the above
- Only 2) and 3)
Correct

Incorrect
Question 54 of 200

54. Question
1 points
India and Vietnam inked seven pacts during the recent visit of the President Pranab Mukherjee to Vietnam. Which of the
following is NOT one among these seven pacts?
- A Letter of Intent (LoI) signed between the OVL and Vietnam Oil
- Pact for extending a dollar credit line between Vietnam and EXIM Bank of India
- Agreement on jointly dealing with aggression in South China Sea
- MoU on setting up of Pangasius breeding and farming in India
- MoU on operating and jointly promoting direct air services
Correct

Incorrect
Question 55 of 200

55. Question
1 points
Who among the following is the new chairman of Indian Banks’ Association (IBA)?
- Chanda Kochhar
- Arun Kaul
- KR Kamath
- TM Bhasin
- SL Bansal
Correct

Incorrect
Question 56 of 200

56. Question
1 points
Edward Mawthoh won bronze at World Championships recently. He is associated with which of the following games?
- Boxing
- Kickboxing
- Netball
- Discuss throw
- None of these
Correct

Incorrect
Question 57 of 200

57. Question
1 points
The third phase of the Norochcholai power plant was dedicated to nation in Sri Lanka recently. This power plant has
been build with assistance from which of the following countries?
- Canada
- Germany
- China
- Japan
- None of these
Correct

Incorrect
Question 58 of 200

58. Question
1 points
The sixth meeting of SAARC Home ministers to focus on human trafficking was held in headquarters of the grouping
in________ recently.
- Dhaka
- Kathmandu
- New Delhi
- Colombo
- None of these
Correct

Incorrect
Question 59 of 200

59. Question
1 points
The Road Transport and Highways Ministry decided to roll out a new programme named FASTag across the country.
This new programme is aimed at
- measuring speed and load of vehicles electronically
- nabbing drunk drivers electronically
- tracing vehicle on highways electronically
- payment of highway tolls electronically
- None of these
Correct

Incorrect
Question 60 of 200

60. Question
1 points
The Govt issued draft guidelines for E-rickshaws recently. Which of the following statements is NOT true in this regard?
- It will have top speed of 35 kmph.
- It can carry a maximum of four passengers excluding the driver.
- Driving licence and periodic fitness certificates mandatory for e-rickshaws.
- E – rickshaws will be added as a separate vehicle category.
- All are true
Correct

Incorrect
Question 61 of 200

61. Question
1 points
The FIFA Under-17 World Cup is slated to take place in which of the following countries in 2017?
- Brazil
- China
- Japan
- India
- None of these
Correct

Incorrect
Question 62 of 200

62. Question
1 points
According to the Wealth-X and UBS Billionaire Census 2014, what is India’s position in terms of the number of billionaires in the country?
- Third
- Fourth
- Sixth
- Seventh
- None of these
Correct

Incorrect
Question 63 of 200

63. Question
1 points
Mayon volcano which erupted , recently in which of the following countries? The 2,460-metre volcano is famed for its near-perfect cone and has a long history of deadly eruptions.
- Philippines
- Thailand
- Indonesia
- Malaysia
- None of these
Correct

Incorrect
Question 64 of 200

64. Question
1 points
The govt approved launching of national Ayush Mission (NAM) to address gaps in health services in vulnerable and far-flung areas of the country. This mission will include which of the following systems of medicine?
- Homoeopathy
- Siddha
- Ayurveda
- Naturopathy
- All the above
Correct

Incorrect
Question 65 of 200

65. Question
1 points
India is all set to get its first overseas post in the form of Chabahar port in which of the following countries? The Union Cabinet is expected to clear the long-delayed project soon.
- Iraq
- Iran
- Vietnam
- Sri Lanka
- None of these
Correct

Incorrect
Question 66 of 200

66. Question
1 points
Google launched android One-powered smartphones India which is the first country to receive these devices. These devices are initially being offered by
- Micromax
- Spice Mobiles
- Karbonn
- All the above
- Only 1) and 3)
Correct

Incorrect
Question 67 of 200

67. Question
1 points
The International sports body FIBA regulates which of the following sports? It allowed the players to wear religious head coverings, such as hijabs or turbans, on a trial basis recently.
- Football
- Basketball
- Badminton
- Boxing
- None of these
Correct

Incorrect
Question 68 of 200

68. Question
1 points
Which of the following countries has the highest foreign exchange reserves (just shy to $4tn) in the world?
- US
- Japan
- India
- China
- None of these
Correct

Incorrect
Question 69 of 200

69. Question
1 points
According to the HSBC Trade Forecast Report, India may become fifth largest exporter by 2030. What is India’s position in terms of export of goods by value at present?
- 9th
- 11th
- 13th
- 14th
- None of these
Correct

Incorrect
Question 70 of 200

70. Question
1 points
Name the Indian boxer who was denied Arjuna award this year and now he has won a court battle against govt to get the
coveted sports award.
- Sumit Sangwan
- Shiva Thapa
- Manoj Kumar
- Vikas Krishan Yadav
- None of these
Correct

Incorrect
Question 71 of 200

71. Question
1 points
The BJP Govt wants to revamp the Rashtriya Mahila Kosh (RMK) and give it a fresh impetus. Which of the following statements is NOT correct with respect to RMK?
- It was set up in 1993 under the Societies Registration Act for the socio-economic empowerment of women.
- Currently RMK provides loans to NGO-MFIs which further lend to self-help groups of women.
- The govt plans to take RMK to the women beneficiaries in the six lakh villages of the country.
- It extends micro-credit to women in the informal sector against collateral.
- None of these
Correct

Incorrect
Question 72 of 200

72. Question
1 points
Who among the following has been appointed as the new Chairman of the National Commission for Women (NCW)?
- Lalitha Kumaramangalam
- Meenakshi Lekhi
- Kishori Sinha
- Tamilisai Soundarrajan
- None of these
Correct

Incorrect
Question 73 of 200

73. Question
1 points
The Central govt is working with states to initiate Nirbhaya Centres across the country. The Nirbhaya Centres will act as hubs for________ at district level.
- improving sex ratio
- promoting women’s education
- protecting women
- eliminating child marriage
- None of these
Correct

Incorrect
Question 74 of 200

74. Question
1 points
The book titled “At Home in India: The Muslim Saga” has been written by
- Salman Khurshid
- MJ Akbar
- Mukhtar Abbas Naqvi
- Najma Heptulla
- None of these
Correct

Incorrect
Question 75 of 200

75. Question
1 points
Which of the following dates is celebrated every year in India as Engineer’s Day to commemorate the birthday of the legendary engineer Sir M Visvesvaraya?
- 11 Sep
- 15 Sep
- 17 Sep
- 19 Sep
- None of these
Correct

Incorrect
Question 76 of 200

76. Question
1 points
Which of the following universities topped the QS World University Rankings released recently? It is regarded as the
most rigorous of its type of ranking.
- Oxford
- MIT
- Harvard
- Cambridge
- None of these
Correct

Incorrect
Question 77 of 200

77. Question
1 points
India and China signed three-Gujarat specific pacts during the Chinese President Xi Jinping’s three-day visit to India.
Which of the following is NOT among them?
- Making Guangzhou city in China and Ahmedabad as sister cities
- Setting up of industrial parks in this state
- Agreement between Guangdong province and the Gujarat govt for development of cultural and social ties between the two provinces
- MoU on feasibility study to develop small ports across the Gujarat coastline
- None of these
Correct

Incorrect
Question 78 of 200

78. Question
1 points
Richard Rahul Verma has been appointed as the new ambassador of which of the following countries to India recently?
- US
- UK
- France
- Italy
- None of these
Correct

Incorrect
Question 79 of 200

79. Question
1 points
The name peng Liyuan was doing round in the media during the recent visit of Chinese President Xi Jinping to India. She is
- a renowned business woman of China
- is the head of the Ministry of Foreign Affairs of China
- personal assistant of Xi Jinping
- the first lady of China
- None of these
Correct

Incorrect
Question 80 of 200

80. Question
1 points
India’s domestic airlines IndiGo inked a $2.6 bn aircraft finance deal with which of the following banks recently?
- Bank of Japan
- ICBC
- Bank of America
- Deutsche Bundesbank
- None of these
Correct

Incorrect
Question 81 of 200

81. Question
1 points
The world’s largest ultra mega solar power park to generate 2,500 MW is being established in which of the following Indian states as announced by the Union Minister of Power and Coal, Piyush Goyal recently?
- Gujarat
- Madhya Pradesh
- Andhra Pradesh
- Tamil Nadu
- None of these
Correct

Incorrect
Question 82 of 200

82. Question
1 points
Who among the following has been appointed as the new Chinese ambassador to India recently?
- Wei Wei
- Le Yucheng
- Luo Zhaohui
- Hong Lei
- None of these
Correct

Incorrect
Question 83 of 200

83. Question
1 points
Shanghai and which of the following Indian cities will be sister cities as per the MoU signed during the recent visit of
Chinese President Xi Jinping to India?
- Ahmedabad
- New Delhi
- Chennai
- Mumbai
- None of these
Correct

Incorrect
Question 84 of 200

84. Question
1 points
Chinese President committed investments worth what amount in India over the next five years during his recent visit the
country?
- USD 20 bn
- USD 30 bn
- USD 25 bn
- USD 100 bn
- None of these
Correct

Incorrect
Question 85 of 200

85. Question
1 points
The Indian Air Force has gifted a vintage Dakota aircraft from its museum to the Air Force of which of the following
countries recently?
- Myanmar
- Bangladesh
- Thailand
- Vietnam
- None of these
Correct

Incorrect
Question 86 of 200

86. Question
1 points
The three govt-controlled oil marketing companies (OMCs) started earning a small profit of 35p a litre on diesel recently for the first time in 12 years. What is the petroleum subsidy burden that the govt bore last year?
- Rs 23,000 cr
- Rs 34,000 cr
- Rs 42,000 cr
- Rs 63,000 cr
- None of these
Correct

Incorrect
Question 87 of 200

87. Question
1 points
Prime Minister Narendra Modi has picked who among the following to head the Quality Council of India that promotes high standards in areas like education, healthcare, environment, infrastructure, governance and social sectors?
- Mihir Shah
- Arun Maira
- Adil Zainulbhai
- Sam Pitroda
- None of these
Correct

Incorrect
Question 88 of 200

88. Question
1 points
Shankar Barua, who allegedly shot himself dead at his residence, was former Director General of Police (DGP) of which
of the following states? His name was linked with infamous Saradha scam and was questioned by CBI recently.
- Assam
- West Bengal
- Sikkim
- Manipur
- None of these
Correct

Incorrect
Question 89 of 200

89. Question
1 points
The Finance Minister has decided to set aside Rs 50 cr from Social Security Fund (SSF) for payment of premium towards life insurance cover under Jan Dhan scheme. The SSF was set up in 1988-89 for providing social security and is managed by
- LIC
- GIC
- NIC
- RBI
- None of these
Correct

Incorrect
Question 90 of 200

90. Question
1 points
In the recent time, the govt has diluted several green norms to facilitate faster clearance for the projects? Which of the following is NOT among them?
- Wildlife Board nod delinked from forest clearance for areas around wildlife zones
- States’ powers to put additional safeguards done away with
- Forests can be cut before final clearance for linear projects such as roads and irrigation canals
- Miners not in compliance for over five years to get approvals
- None of these
Correct

Incorrect
Question 91 of 200

91. Question
1 points
Jitu rai won the first gold medal for Indian in 17th Asian Games in South Korea recently. He won gold in
- badminton
- shooting
- archery
- wrestling
- None of these
Correct

Incorrect
Question 92 of 200

92. Question
1 points
Which of the following pairs won the women’s doubles title of the WTA Pan Pacific Open tennis tournament recently?
- Garbine Muguruza and Carla Suarez Navarro
- Sania Mirza and Cara Black
- Su-Wei Hsieh and Shuai Peng
- Sara Errani and Roberta Vinci
- None of these
Correct

Incorrect
Question 93 of 200

93. Question
1 points
The nation first ever memorial in honour of the recipients of the Armed Forces’ highest gallantry award Param Veer Chakra has been inaugurated in
- New Delhi
- Port Blair
- Chandigarh
- Kargil
- None of these
Correct

Incorrect
Question 94 of 200

94. Question
1 points
Who among the following has been elected the new head of newly constituted boxing body Boxing India?
- JCD Prabhakar
- Akhilesh Das Gupta
- Anil Khanna
- Sandeep Jajodia
- None of these
Correct

Incorrect
Question 95 of 200

95. Question
1 points
Who among the following won India its first Olympic archery medal, a bronze, at the Youth Olympic Games at Nanjing,
China?
- Sanjay Boro
- Dhaniram Basumatary
- Atul Verma
- Govindas Singh
- None of these
Correct

Incorrect
Question 96 of 200

96. Question
1 points
Who among the following was the flag bearer of the Indian contingent at 17th Asian Games opening ceremony in Incheon, South Korea?
- Sania Mirza
- Saurav Ghosal
- Sardar Singh
- Dipika Pallikal
- None of these
Correct

Incorrect
Question 97 of 200

97. Question
1 points
The Govt launched an action plan, India Newborn Action Plan (INAP), aimed at reducing newborn deaths from 29 per
thousand live births to single digit by
- 2020
- 2024
- 2030
- 2036
- None of these
Correct

Incorrect
Question 98 of 200

98. Question
1 points
The three-day Global Investors Summit, Invest Madhya Pradesh, is scheduled to be held in which of the following cities from Oct 8-10?
- Gwalior
- Bhopal
- Jabalpur
- Indore
- None of these
Correct

Incorrect
Question 99 of 200

99. Question
1 points
We often read about the term gold ETF in the financial newspapers. What does letter ‘T’ denote in the term ETF?
- Traded
- Transferable
- Transaction
- Termination
- None of these
Correct

Incorrect
Question 100 of 200

100. Question
1 points
John Key has won an emphatic victory in the recently held general elections and is all set to lead which of the following countries for the third term?
- Zimbabwe
- New Zealand
- Spain
- Norway
- None of these
Correct

Incorrect
Question 101 of 200

101. Question
1 points
The reaction shown below belw is anexampe of Austenite $\rightleftharpoons$
Ferrite + Cementite
- Eutectoid
- Eutectic
- Peritectic
- None of these
Correct

Incorrect
Question 102 of 200

102. Question
1 points
For a counter flow heat ex-changer, if heat capacity rate of both fluid is equal then temperature difference between not and cold fluid along the length
- Vary exponentially
- Remains constant
- Vary linearly
- Vary linearly for half of the length and vary exponentially for other half
Correct

Incorrect
Question 103 of 200

103. Question
1 points
103. Which of the following welding process is based on law of heating?
- Arc welding"
- Electron Beam We
- Resistance welding
- LASER Beam weld
Correct

Incorrect
Question 104 of 200

104. Question
1 points
Which of the following cannot be negative?
- Change in enthalpy of the system
- Change in enthly of the system
- Change in energy of the system
- None of these
Correct

Option (1) is not correct because if heat flows from the system, entropy of the system will decrease, and the entropy of environment will Increase. Sum of the entropy of system and environment i.e. the entropy of universe cannot be negative but entropy of system can be negative.

Incorrect

Option (1) is not correct because if heat flows from the system, entropy of the system will decrease, and the entropy of environment will Increase. Sum of the entropy of system and environment i.e. the entropy of universe cannot be negative but entropy of system can be negative.
Question 105 of 200

105. Question
1 points
Two fair dice are thrown twice A and B are two events
A : First toss is sum 5 or 3
B : Second toss is 7. than P ( A or B) is
- $\frac{1}{6}$
- $\frac{5}{36}$
- $\frac{11}{36}$
- None of these
Correct

and B are independent events

P(A or B) = P(A) + P(B) - P

(A $\cap$ B) = P(A)+ P(B)

$\frac{6}{36}+\frac{6}{36}-\frac{6}{36}\times \frac{6}{36}=\frac{11}{36}$

Incorrect

and B are independent events

P(A or B) = P(A) + P(B) - P

(A $\cap$ B) = P(A)+ P(B)

$\frac{6}{36}+\frac{6}{36}-\frac{6}{36}\times \frac{6}{36}=\frac{11}{36}$
Question 106 of 200

106. Question
1 points
$\lim_{X\rightarrow 1}\frac{x^{2}-1}{|x-1|}$ =
- 2
- -2
- 0
- Does not exist
Correct

$\lim_{X\rightarrow 1^{+}}\frac{x^{2}-1}{|x-1|}=2$

$\lim_{X\rightarrow 1^{-}}\frac{x^{2}-1}{|x-1|}=-2$

Incorrect

$\lim_{X\rightarrow 1^{+}}\frac{x^{2}-1}{|x-1|}=2$

$\lim_{X\rightarrow 1^{-}}\frac{x^{2}-1}{|x-1|}=-2$
Question 107 of 200

107. Question
1 points
A self-service store employs one cashier at its counter. Nine customers arrive on an average every 5 minutes while the cashier can serve 10 customers in 5 minutes. Assuming poison distribution for arrival rate and exponential distribution for service rate, find the average number of customers in the queue.
- 6.7
- 7.8
- 9.6
- 8.1
Correct

$\lambda =\frac{9}{5}$ =1.8

$\mu=\frac{10}{5}$ = 2

$L_{q}=\frac{\lambda ^{2}}{\mu(\mu-\lambda)}$ = 8.1

Incorrect

$\lambda =\frac{9}{5}$ =1.8

$\mu=\frac{10}{5}$ = 2

$L_{q}=\frac{\lambda ^{2}}{\mu(\mu-\lambda)}$ = 8.1
Question 108 of 200

108. Question
1 points
Match the List I with list II :
List-I
P. Basic shaft
Q. Basic hole
R. Go limit
S. Not go limit
List-II
I. Lower deviation is zero
II. Lower limit of hole
III. Upper deviation is zero
IV. Upper limit of hole
- P-IV, Q-II, R-I, S-III
- P-II, Q-IV, R-III, S-I
- P-I, Q-III, R-IV, S-Il
- P-III, Q-I, R-II, s-Iv
Correct

Incorrect
Question 109 of 200

109. Question
1 points
Which of the following defines IC engine most appropriately?
- Product of combustion is used as working substance
- Combustion of fuel takes place inside the cylinder
- Petrol or diesel is used as fuel
- Works on diesel or otto cycle
Correct

Option b is not correct because, it does not include open cycle gas turbines which also consider as IC engines where combustion takes place in separate combustion chamber. So the most appropriate answer is (1)

Incorrect

Option b is not correct because, it does not include open cycle gas turbines which also consider as IC engines where combustion takes place in separate combustion chamber. So the most appropriate answer is (1)
Question 110 of 200

110. Question
1 points
A turbine is working under a head of 200m. The power developed by the turbine is 100KW and discharge through turbine is 0.125m³/sec. What will be the ratio of unit power to unit discharge for the turbine?
- 4000
- 16000
- $160\times 10^{3}$
- $800\times 10^{3}$
Correct

Unit power

$P_{u}=\frac{P}{H^{\frac{3}{2}}}$

Unit discharge , $Q_{u}=\frac{Q}{\sqrt{H}}$

Ratio = $\frac{P_{u}}{Q_{u}}=\frac{P\times \sqrt{H}}{H^{\frac{3}{2}\times Q}}=\frac{P}{QH}$ = 4000

Incorrect

Unit power

$P_{u}=\frac{P}{H^{\frac{3}{2}}}$

Unit discharge , $Q_{u}=\frac{Q}{\sqrt{H}}$

Ratio = $\frac{P_{u}}{Q_{u}}=\frac{P\times \sqrt{H}}{H^{\frac{3}{2}\times Q}}=\frac{P}{QH}$ = 4000
Question 111 of 200

111. Question
1 points
If it is given that, A + B + C = π, then the value of the determinant,

$\begin{vmatrix}-1 & \cos C & \cos B\\ \cos C & -1 & \cos A\\ \cos B & \cos A & -1<br /> \end{vmatrix}$
- $\cos^{2}B\: \sin ^{2}B$
- 1
- -cos C
- None of these
Correct

$\begin{vmatrix}-1 & \cos C & \cos B\\ \cos C & -1 & \cos A\\ \cos B & \cos A & -1 \end{vmatrix}$

$\underset{R_{21}(\cos C)}{\rightarrow}$

$R_{21}(\cos BC)$

$\begin{vmatrix}-1 & \cos C & \cos B\\ 0 & 0 & \cos A+\cos C\, \cos B\\ 0 & \cos C\, \cos B+\cos A & \cos ^{2}B-1 \end{vmatrix}$

$[-\sin ^{2}B\: \sin ^{2}C-\left \{(-\cos (B+C)+\cos B\, \cos C)\right\}^{2}]$

$[\because A+B+C=\pi ]=-[\sin ^{2}B\: \sin ^{2}C-\sin ^{2}B\: \sin ^{2}C]$ = 0

Incorrect

$\begin{vmatrix}-1 & \cos C & \cos B\\ \cos C & -1 & \cos A\\ \cos B & \cos A & -1 \end{vmatrix}$

$\underset{R_{21}(\cos C)}{\rightarrow}$

$R_{21}(\cos BC)$

$\begin{vmatrix}-1 & \cos C & \cos B\\ 0 & 0 & \cos A+\cos C\, \cos B\\ 0 & \cos C\, \cos B+\cos A & \cos ^{2}B-1 \end{vmatrix}$

$[-\sin ^{2}B\: \sin ^{2}C-\left \{(-\cos (B+C)+\cos B\, \cos C)\right\}^{2}]$

$[\because A+B+C=\pi ]=-[\sin ^{2}B\: \sin ^{2}C-\sin ^{2}B\: \sin ^{2}C]$ = 0
Question 112 of 200

112. Question
1 points
The equation of the integral curve that passes through (1,2) of the differential equation

y' = $\frac{2x}{y^{2}+1}$
- $2(x^{2}-1)=y^{3}-3y$
- $3x^{2}+11=y^{3}+3y$
- $y^{3}+1=3x^{2}+17$
- None of these
Correct

$\frac{\mathrm{dy}}{\mathrm{d}x}=\frac{2x}{y^{2}+1}$

$\Rightarrow (y^{2}+1)-dy-2xdx=0$ ,the above equation is exact

Integrating we get ,

$\frac{y^{3}}{3}+y-x^{2}=C$

At (1 , 2) , C = $\frac{11}{3}$

$\therefore$ The integrating curve is $y^{3}+3y-3x^{2}=11$

Incorrect

$\frac{\mathrm{dy}}{\mathrm{d}x}=\frac{2x}{y^{2}+1}$

$\Rightarrow (y^{2}+1)-dy-2xdx=0$ ,the above equation is exact

Integrating we get ,

$\frac{y^{3}}{3}+y-x^{2}=C$

At (1 , 2) , C = $\frac{11}{3}$

$\therefore$ The integrating curve is $y^{3}+3y-3x^{2}=11$
Question 113 of 200

113. Question
1 points
Evaluate the following limit:

$\lim_{x\rightarrow \infty }(3^{x}+3^{2x})^{\frac{1}{x}}$
- 1
- 12
- 9
- $\infty$
Correct

$\lim_{x\rightarrow \infty }(3^{x}+3^{2x})^{\frac{1}{x}}$

$\lim_{x\rightarrow \infty }\left[9^{x}\left (\frac{3^{x}}{9^{x}}+1\right )\right]^{\frac{1}{x}}$

$\lim_{x\rightarrow \infty }\left[9\left \{\left(\frac{1}{3}\right)^{x}+1\right\}^{\frac{1}{x}}\right]$ = 9

Incorrect

$\lim_{x\rightarrow \infty }(3^{x}+3^{2x})^{\frac{1}{x}}$

$\lim_{x\rightarrow \infty }\left[9^{x}\left (\frac{3^{x}}{9^{x}}+1\right )\right]^{\frac{1}{x}}$

$\lim_{x\rightarrow \infty }\left[9\left \{\left(\frac{1}{3}\right)^{x}+1\right\}^{\frac{1}{x}}\right]$ = 9
Question 114 of 200

114. Question
1 points
Laplace transform of $e^{t}\left(\frac{\sin t}{t}\right)$
- tan-1 (s-1)
- cot-1 (s-1)
- cos-1 (s-1)
- cosec-1 (s-1)
Correct

$L\left ( \frac{f(t)}{t}\right)=\int_{S}^{\infty}\bar{f}(s)ds$

Where ,
$\bar{f}(s)$ = L(f(t)).

$L\left (\frac{\sin t}{t}\right)=\int_{S}^{\infty}\frac{1}{1+S^{2}}ds$

$\cos t^{-1}S\: ,L\left [e^{t} \left(\frac{\sin t}{t}\right)\right ]=\cot^{-1}(S-1)$

Incorrect
Question 115 of 200

115. Question
1 points
The uncut thickness is
- 0.14mm
- 0.21mm
- 0.28mm
- 0.248mm
Correct

From Merchant Circle

$F_{S}=F_{C}\cos \phi -F_{T}\sin \phi$ = 248.3 N

$F_{S}=\frac{wt_{1}T_{S}}{\sin \phi}$

$\Rightarrow t_{1}$ = 0.14 mm

Incorrect

From Merchant Circle

$F_{S}=F_{C}\cos \phi -F_{T}\sin \phi$ = 248.3 N

$F_{S}=\frac{wt_{1}T_{S}}{\sin \phi}$

$\Rightarrow t_{1}$ = 0.14 mm
Question 116 of 200

116. Question
1 points
What will be rake angle if chip thickness is 0.20mm?
- 8.54°
- 12.34°
- 14.73°
- 16.67°
Correct

$\frac{\sin \phi }{\cos (\phi -\alpha)}=\frac{t_{1}}{t_{2}}$

\therefore \alpha =16.67^{\circ}

Incorrect
Question 117 of 200

117. Question
1 points
Two ropes are tied together at C. If the maximum permissible stress (tensile) in rope AC and BC is 400 N/mm² and 600 N/mm² respectively, what is the maximum force F which may be applied at C. The area of each rope is 20 mm²
- 12.5N
- 12.5KN
- 13.5N
- 13.5KN
Correct

Incorrect
Question 118 of 200

118. Question
1 points
The value of a (angle of inclination) in the above problem is
- 97.12° clockwise
- 82.87° anti clock wise
- 97.12° clock wise or 82.87° anti clock wise
- None of these
Correct

Incorrect
Question 119 of 200

119. Question
1 points
119. Hot oil with a capacity rate of 2000W/K flows through a double pipe heat exchanger. It enters at 425°C and leaves at 350°C whereas cold fluid enters at 25°C and leaves at 200°C. If the overall heat transfer coefficient is 800W/m2K then what will be the ratio of heat exchanger area when it is used as parallel flow to counter flow arrangement
- 0.937
- 0.735
- 0.689
- 1.067
Correct

Heat transfer from oil

= $C_{h}\Delta t$ = 2000(425 - 350) = 150 KW.

For parallel flow management

$\Delta T_{1}=T_{ht}-T_{cl}=400^{\circ}C\: ,\Delta T_{2}=T_{ho}-T_{co}=150^{\circ}C$

$\Delta T_{tm}=\frac{\Delta T_{1}-\Delta T_{2}}{ln(\Delta T_{1}/\Delta T_{2})}=254.88^{\circ}C$

Heat exchanger area

$A_{1}=\frac{Q}{U\Delta Tlm}=075m^{2}$

For counter flow arrangment , $\Delta T_{1}=\Delta T_{hi}-T_{co}=225^{\circ}C\: ,\Delta T_{2}=T_{ho}-T_{ci}=325^{\circ}C$

$\Delta T_{lm}=\frac{\Delta T_{1}-\Delta T_{2}}{ln\Delta T_{1}/\Delta T_{2}}=271.94^{\circ}C$

$A_{2}=\frac{Q}{u\Delta T_{lm}}=.689m^{2}$

$\frac{A_{1}}{A_{2}}$ = 1.067

Incorrect
Question 120 of 200

120. Question
1 points
The coefficient of steadiness for a flywheel is 25 and the minimum speed of the flywheel is 750 r.p.m. The maximum fluctuation of speed for the flywheel is
- 15.5 r.p.m.
- 25.6 r.p.m.
- 30 .61 r.p.m.
- 45 r.p.m
Correct

Co - efficient of steadiness

$\frac{N_{1}+N_{2}}{2(N_{1}-N_{2})}$ , Where

$N_{1}$ = Maximum Speed

$N_{2}$ = Minimum Speed , maximum fluctuation of Speed

$N_{1}-N_{2}$ = 30 . 61 rpm

Incorrect

Co - efficient of steadiness

$\frac{N_{1}+N_{2}}{2(N_{1}-N_{2})}$ , Where

$N_{1}$ = Maximum Speed

$N_{2}$ = Minimum Speed , maximum fluctuation of Speed

$N_{1}-N_{2}$ = 30 . 61 rpm
Question 121 of 200

121. Question
1 points
What will be the effect on eccentricity ratio for a hydrodynamic journal bearing if there is increase in the diameter of journal (Assume other parameters as constant)?
- it will increase
- it will decrease
- it will remain same
- None of these
Correct

$\in =1-\frac{2h_{0}}{c}c$ = D - d

Incorrect

$\in =1-\frac{2h_{0}}{c}c$ = D - d
Question 122 of 200

122. Question
1 points
The braking torque for a single band brake is 1575 Nm and the band brake has a contact of 270°. The diameter of drum on which band brake is working is 600 mm and thickness of band is given by the relation t = .0005d, where d is diameter of drum. What will be the value of tension on the slack side if drum is rotating clockwise? The co-efficient of friction is 0.25
- 7579.52Nm
- 2332.26N
- 5247.36
- None of these
Correct

$\theta =270^{\circ}$ = 4.712 rad

$\frac{T_{1}}{T_{2}}=e^{\mu \theta}$ = 3.25

$T_{1}=3.25T_{2}$

$T_{B}=(T_{1}-T_{2})r_{e}$

re = r + $\frac{t}{2}$

= 300 + .005 $\times \frac{600}{2}$ = 1575 = 300.15 Nmm

Incorrect

$\theta =270^{\circ}$ = 4.712 rad

$\frac{T_{1}}{T_{2}}=e^{\mu \theta}$ = 3.25

$T_{1}=3.25T_{2}$

$T_{B}=(T_{1}-T_{2})r_{e}$

re = r + $\frac{t}{2}$

= 300 + .005 $\times \frac{600}{2}$ = 1575 = 300.15 Nmm
Question 123 of 200

123. Question
1 points
The bent-up length of rail used in front of nose of crossing which help in channelising the train wheels in their proper routes are known as:
- lead rail
- point rail
- wing rail
- splice rail
Correct

Incorrect
Question 124 of 200

124. Question
1 points
A thin cylindrical shell when subjected to an internal pressure changes its length by 5% and diameter by3%. If the original volume of cylindrical shell is 75cm3 then what will be the change in volume of shell due to internal pressure.
- 9.75 cm3
- 1.5 cm3
- 6 cm3
- 8.25 cm3
Correct

$e_{1}$ = Circumferential strain = $\frac{\delta d}{d}=\frac{3}{100}=0.03$

$e_{2}$ = Longitudinal strain = $\frac{\delta l}{l}=\frac{5}{100}=0.05$

Change in volume $\delta$ v = v $(e_{2}+2e_{1})=8.25cm^{3}$

Incorrect

$e_{1}$ = Circumferential strain = $\frac{\delta d}{d}=\frac{3}{100}=0.03$

$e_{2}$ = Longitudinal strain = $\frac{\delta l}{l}=\frac{5}{100}=0.05$

Change in volume $\delta$ v = v $(e_{2}+2e_{1})=8.25cm^{3}$
Question 125 of 200

125. Question
1 points
The good quality wood for sleeper is :
- Deodar
- Sheesham
- Teak
- Sal
Correct

Incorrect
Question 126 of 200

126. Question
1 points
Match List I with List II
List-I
P. Autocolimator
Q. Stylus Probe
R. Newall Measuring Machine
S. Taut wire method
List-II
I. Length bar
II. Straightness
III. Angular difference
IV. Surface finish
- P-IV, Q - III, R-I, S-II
- P - IV, Q - III, R - II, S - I
- P - III, Q - IV, R - I, S - II
- P - III, Q - IV, R - II, S - I
Correct

Incorrect
Question 127 of 200

127. Question
1 points
The minimum height of embankment above the highest flood mark in the area should be:
- zero cm
- 30 cm
- 100 cm
- 60 cm
Correct

Incorrect
Question 128 of 200

128. Question
1 points
The estimated duration of times for an activity in the PERT network under the worst and best environment is 10 days and 4 days respectively. The variance of the activity is
- 6 days
- 10 days
- 4 days
- 1 day
Correct

$\sigma^{2}=\left ( \frac{t_{p}-t_{o}}{6} \right)^{2}=\left(\frac{10-4}{6}\right)^{2}$ = 1

Incorrect

$\sigma^{2}=\left ( \frac{t_{p}-t_{o}}{6} \right)^{2}=\left(\frac{10-4}{6}\right)^{2}$ = 1
Question 129 of 200

129. Question
1 points
The granular material spread on the formation of a railway track for the sleepers to rest upon is known as:
- anchors
- ballast
- subgrade
- chairs
Correct

Incorrect
Question 130 of 200

130. Question
1 points
Direction(130-132): The temperature distribution across a large concrete slab 120cm thick, heated from one side as measured by thermocouple approximates to the following relation:

T = $120-75x+8x^{2}+12x^{3}-7x^{4}$ where T is in °C, x is in meters, considering the area of cross-section as $5m^{2}$ , thermal conductivity as 1.2 W/mK and thermal diffusivity as $1.77\times 10^{-3}m^{2}/h$
The heat energy stored in unit time is
- 376.272W
- 188.136W
- 135.936W
- 73.728W
Correct

Incorrect
Question 131 of 200

131. Question
1 points
Rate of temperature change at both ends of plate is
- $28.32\times 10^{-3}\: ^{\circ}\: C/h\: ,-78.16\times 10^{-3}\:^{\circ}\:C/h$
- $94.02\times 10^{-3}\: ^{\circ}\: C/h\: ,68.16\times 10^{-3}\:^{\circ}\:C/h$
- $28.32\times 10^{-3}\: ^{\circ}\: C/h\: ,-32.85\times 10^{-3}\:^{\circ}\:C/h$
- $28.32\times 10^{-3}\: ^{\circ}\: C/h\: ,-94.02\times 10^{-3}\:^{\circ}\:C/h$
Correct

Incorrect
Question 132 of 200

132. Question
1 points
The rate of heating or cooling will be minimum at
- 0.214m
- 0.428m
- 0.857m
- 1.071m
Correct

Incorrect
Question 133 of 200

133. Question
1 points
When a system is taken from state A to state B along the path A-C-B, 180 kJ heat flows into the system and it does 130 kJ of work (as shown in figure). How much heat will flow into the system along the path ADB if the work done by it along the path is 40 kJ ?
- 40kJ
- 60kJ
- 90 kJ
- 135 kJ
Correct

$(\Delta U)_{ACB}=(\Delta U)_{ACB}=(\Delta U)_{ADB}\: ,\Delta Q$

= $\Delta U+\Delta W$

Incorrect

$(\Delta U)_{ACB}=(\Delta U)_{ACB}=(\Delta U)_{ADB}\: ,\Delta Q$

= $\Delta U+\Delta W$
Question 134 of 200

134. Question
1 points
In the figure shown E is the heat engine with efficiency of 0.4 and R is the refrigerator Given that Q₂ + Q₄ = 3Q₁the coefficient of performance of the refrigerator is
- 5
- 4.5
- 3
- 5.5
Correct

0.4 = $\frac{w}{Q_{1}}$ , W = 0.4 $Q_{1}$

COP = $\frac{Q_{3}}{W}$ ,

COP = $\frac{2Q_{1}}{0.4Q_{1}}$ = 5

Incorrect

0.4 = $\frac{w}{Q_{1}}$ , W = 0.4 $Q_{1}$

COP = $\frac{Q_{3}}{W}$ ,

COP = $\frac{2Q_{1}}{0.4Q_{1}}$ = 5
Question 135 of 200

135. Question
1 points
Two bars each of length I and 4 the same material are subjected to the same axial tensile force P. The first bar hat a uniform diameter 2d. The second bar has a diameter d for '2d' for the remaining length, The ratio of strain energies the two bars is
- $\frac{1}{3}$
- $\frac{1}{2}$
- $\frac{2}{3}$
- $\frac{3}{2}$
Correct

For 1st bar ,

Stress = $\frac{P}{\frac{\pi}{4}(2d)^{2}}=\frac{P}{\pi d^{2}}$

Strain energy stored = $\frac{F^{2}}{2E}\times$ Vol of bar = $\frac{P^{2}l}{2E\pi d^{2}}=\frac{}{}$

2nd bar , AB = $F_{1}$

$\frac{4P}{\pi d^{2}}$ , BC

= $F_{2}=\frac{P}{\pi d^{2}}$

Stress energy = AB + BC

= $\frac{f_{1}^{2}}{2E}\times$ vol of AB + $\frac{f^{2}}{2E}\times$ Vol of BC

= $\frac{\pi ^{2}l}{E\pi d^{2}}$ , ratio $\rightarrow \frac{1}{2}$

Incorrect

For 1st bar ,

Stress = $\frac{P}{\frac{\pi}{4}(2d)^{2}}=\frac{P}{\pi d^{2}}$

Strain energy stored = $\frac{F^{2}}{2E}\times$ Vol of bar = $\frac{P^{2}l}{2E\pi d^{2}}=\frac{}{}$

2nd bar , AB = $F_{1}$

$\frac{4P}{\pi d^{2}}$ , BC

= $F_{2}=\frac{P}{\pi d^{2}}$

Stress energy = AB + BC

= $\frac{f_{1}^{2}}{2E}\times$ vol of AB + $\frac{f^{2}}{2E}\times$ Vol of BC

= $\frac{\pi ^{2}l}{E\pi d^{2}}$ , ratio $\rightarrow \frac{1}{2}$
Question 136 of 200

136. Question
1 points
A machine mounted on springs and fitted with a dashpot has a mass of 60 kg. There are three springs, each of stiffness 12N/mm. The amplitude of vibrations reduces from 45 to 8mm in two complete oscillations. Assuming that the damping force varies as velocity. Then the damping coefficient will be
- 0.5N/mm/s
- 0.46N/mm/s
- 0.36N/mm/s
- 0.4N/mm/s
Correct

$\omega _{n}=\sqrt{\frac{s}{m}}$ = 24 . 49 rad/sec

$\left(\frac{x_{0}}{x_{2}}\right)=\frac{x_{0}}{x_{1}}\times \frac{x_{1}}{x_{2}}$

$\left(\frac{x_{0}}{x_{1}}\right)^{2},\frac{x_{0}}{x_{1}}=\left(\frac{x_{0}}{x_{2}}\right)^{\frac{1}{2}}$

$\left(\frac{45}{8}\right)^{\frac{1}{2}}$ = 2.37

$\frac{2\pi \xi }{\sqrt{1-\xi ^{2}}}$ = in2.37 = 0.867

$\Rightarrow \xi$ = 0.136

C = $2m\omega _{n}\xi$ = 0.4 N/mm/sec

Incorrect

$\omega _{n}=\sqrt{\frac{s}{m}}$ = 24 . 49 rad/sec

$\left(\frac{x_{0}}{x_{2}}\right)=\frac{x_{0}}{x_{1}}\times \frac{x_{1}}{x_{2}}$

$\left(\frac{x_{0}}{x_{1}}\right)^{2},\frac{x_{0}}{x_{1}}=\left(\frac{x_{0}}{x_{2}}\right)^{\frac{1}{2}}$

$\left(\frac{45}{8}\right)^{\frac{1}{2}}$ = 2.37

$\frac{2\pi \xi }{\sqrt{1-\xi ^{2}}}$ = in2.37 = 0.867

$\Rightarrow \xi$ = 0.136

C = $2m\omega _{n}\xi$ = 0.4 N/mm/sec
Question 137 of 200

137. Question
1 points
Match List I with List II
List-I
P. Annealing
Q. Normalizing
R. Quenching
S. Austempering
List-II
I. Bainitic structure
II. Martensite
III. Coarse pearlite
IV. Fine pearlite
- p- III, Q- IV, R-II, S-I
- P-II, Q-III, R-I, S - III
- P - III. Q - IV, R - I, S - II
- P - IV, Q - III, R - II, S - I
Correct

Incorrect
Question 138 of 200

138. Question
1 points
When did the Janta Express trains start?
- 1947
- 1948
- 1948
- 1950
Correct

Incorrect
Question 139 of 200

139. Question
1 points
Two castings of same metal having same surface area. One casting in the form of sphere and another is in the from of cube. The ratio of solidification time for the sphere to cube is
- 2.1
- 1.6
- 1.9
- 1.5
Correct

$A_{S}=A_{C}\: ,4\pi r^{2}=6a^{2}$

$\Rightarrow r^{2}=\frac{6}{4\pi}a^{2}$

$(t_{s})_{sphere}=k\left (\frac{V_{s}}{A_{s}}\right)^{2}$

$(t_{s})_{Cube}=k\left (\frac{V_{c}}{A_{c}}\right)^{2}$

$\frac{(t_{s})_{s}}{(t_{s})_{c}}=\left(\frac{4}{3}\pi \right)\frac{(r^{2})^{3}}{(a^{2})^{3}}$ = 1.9

Incorrect

$A_{S}=A_{C}\: ,4\pi r^{2}=6a^{2}$

$\Rightarrow r^{2}=\frac{6}{4\pi}a^{2}$

$(t_{s})_{sphere}=k\left (\frac{V_{s}}{A_{s}}\right)^{2}$

$(t_{s})_{Cube}=k\left (\frac{V_{c}}{A_{c}}\right)^{2}$

$\frac{(t_{s})_{s}}{(t_{s})_{c}}=\left(\frac{4}{3}\pi \right)\frac{(r^{2})^{3}}{(a^{2})^{3}}$ = 1.9
Question 140 of 200

140. Question
1 points
An annealed copper strip of 228mm wide and 25mm thick is rolled to a thickness of 20mm in one pass. The roll radius is 300mm and the rolls rotate at lOOrpm. Then the power required in this operation is (assume two rolls sytem)
- 1340kW
- 1220kW
- 1760kW
- 1010W
Correct

$L=\sqrt{R(h_{o}-h_{f})}=1.55$ in true strain

$\epsilon$ = in

$\left (\frac{1.00}{0.80} \right)=0.223$

roll force F
= $Lwy_{average}$ = 1.6Mn

Power = $\frac{2\piFLN}{33000}=670Kw\times$ two rolls = 1340Kw

Total IP = $4\times 6.18$ = 24 . 72 Kw

Incorrect

$L=\sqrt{R(h_{o}-h_{f})}=1.55$ in true strain

$\epsilon$ = in

$\left (\frac{1.00}{0.80} \right)=0.223$

roll force F
= $Lwy_{average}$ = 1.6Mn

Power = $\frac{2\piFLN}{33000}=670Kw\times$ two rolls = 1340Kw

Total IP = $4\times 6.18$ = 24 . 72 Kw
Question 141 of 200

141. Question
1 points
The members laid transversely under the rails for supporting and fixing them at the gauge distance apart are known as:
- fastenings
- sleepers
- ballast
- fish plate
Correct

Incorrect
Question 142 of 200

142. Question
1 points
A for cylinder engine running at 1200rpm delivers 20kW. The average torque when one cylinder was cut is 11 ONm. If the calorific value of the fuel is 43MJ/kg and engine uses 360gms of gasolien per kWh. Then the mass of fuel consumption in kg/sec is
- $1\times 10^{-3}$ kg/s
- $2\times 10^{-3}$ kg/s
- $3\times 10^{-3}$ kg/s
- $4\times 10^{-3}$ kg/s
Correct

Average BP for 3 cylinder

$\frac{2\pi NT}{60000}=13.82Kw$

Average IP with one cyllender = 20 - 13.82 Kw

ISFC = bsfc $\times \frac{BP}{IP}$ = 291 .56g/kwh

Fuel consumption = $\frac{ISFC\times IP}{360\times 1000}=2\times 10^{-3}$ Kg/s

Incorrect

Average BP for 3 cylinder

$\frac{2\pi NT}{60000}=13.82Kw$

Average IP with one cyllender = 20 - 13.82 Kw

ISFC = bsfc $\times \frac{BP}{IP}$ = 291 .56g/kwh

Fuel consumption = $\frac{ISFC\times IP}{360\times 1000}=2\times 10^{-3}$ Kg/s
Question 143 of 200

143. Question
1 points
The wheels are coned to prevent from rubbing the inside face of the rail head and to prevent lateral movement of the axle with its wheels. The slope of cone is:
- 1 in 5
- 1 in 20
- 1 in 10
- 1 in 15
Correct

Incorrect
Question 144 of 200

144. Question
1 points
Water flowing through a pipe line having four different diameters at 4 station is shown in the figure.

The correct sequence of station numbers in the decreasing order of pressure is :
- 3,1,4,2
- 1,3,2,4
- 1,3,4,2
- 3,1,2,4
Correct

It must be remembered that velocity and pressure head be-have in reverse fashion. Thus velocity will be maximum for least area and pressure will be minimum. $\therefore$ D $\rightarrow$ 3, 1, 2, 4.

Incorrect

It must be remembered that velocity and pressure head be-have in reverse fashion. Thus velocity will be maximum for least area and pressure will be minimum. $\therefore$ D $\rightarrow$ 3, 1, 2, 4.
Question 145 of 200

145. Question
1 points
Most significant which imposes limitations in raising the high speeds is :
- adhesion of wheels
- resistance due to oscillations
- flange resistance
- air or wind resistance
Correct

Incorrect
Question 146 of 200

146. Question
1 points
The velocity in a laminar boundary layer is $\frac{u}{v}=2\frac{y}{\delta}-\left(\frac{y}{\delta}\right)^{2}$ . The displacement thickness is equal to
- $\frac{\delta}{3}$
- $\frac{\delta}{2}$
- $\frac{2}{3^{\delta}}$
- $\frac{4}{3^{\delta}}$
Correct

$\int_{0}^{\infty}\left(1-\frac{u}{v}\right)dy=\int_{0}^{\infty}\left[1-\frac{2y}{\delta}+\left ( \frac{y}{\delta}\right)^{2}\right]dy=\frac{5}{3}$

Incorrect

$\int_{0}^{\infty}\left(1-\frac{u}{v}\right)dy=\int_{0}^{\infty}\left[1-\frac{2y}{\delta}+\left ( \frac{y}{\delta}\right)^{2}\right]dy=\frac{5}{3}$
Question 147 of 200

147. Question
1 points
Steel sleepers are______shaped in section.
- oval
- rectangular
- trough
- semi-spherical
Correct

Incorrect
Question 148 of 200

148. Question
1 points
Which of the following will not be find in iron carbon equilibrium diagram:
- Pearlite
- Cementite
- Austenite
- Martensite
Correct

Incorrect
Question 149 of 200

149. Question
1 points
Direction (149-150): A timber beam is freely supported on supports 6 metres apart. It carries a uniformly distributed load of 12KN per metre run and a concentrated load of 9 kN at 2.5 metre from the left support. Stress in timber should ot exceed 8 N/mm2.
Maximum bending moment in the beam will be:
- 65.8KNm
- 78.2KNm
- 91.7KNm
- 88.3KNm
Correct

$9\times 2.5+12\times 6\times 3=6\times R_{B}$

$R_{B}$ = 37.7KN

$R_{A}+R_{B}=12\times 6+9$

$R_{A}$ = 41.25Kn

Shere force in section AC = 41.25 - 12x

For Maximum BM

41.5 - 12x = 0

x = 3.4375 , x = 3.4375 does not lie in section AC

Consider section BC

$S_{F}$ = 41.25 - 12x - 9

For maximum BM SF = 0

x = 2.6875

Now BM at x = 2.6875= 65.85KNm

Incorrect

$9\times 2.5+12\times 6\times 3=6\times R_{B}$

$R_{B}$ = 37.7KN

$R_{A}+R_{B}=12\times 6+9$

$R_{A}$ = 41.25Kn

Shere force in section AC = 41.25 - 12x

For Maximum BM

41.5 - 12x = 0

x = 3.4375 , x = 3.4375 does not lie in section AC

Consider section BC

$S_{F}$ = 41.25 - 12x - 9

For maximum BM SF = 0

x = 2.6875

Now BM at x = 2.6875= 65.85KNm
Question 150 of 200

150. Question
1 points
What should be the cross sectional area of beam if depth twice the width:
- 0.21m2
- 0.11m2
- 0.32 m2
- 0.28 m2
Correct

M = z $\sigma$

z = $\frac{M}{\sigma}=\frac{65.83\times 10^{6}}{8}=8.2287\times 10^{6}$

z = $\frac{1}{6}bd^{2}=\frac{1}{6}b(2b)^{2}=\frac{2b^{3}}{3}$

$\frac{2b^{3}}{3}=8.2286\times 10^{6}$

b = 231mm

d = 462 mm

$\therefore$ Crossection area = $6\times d=0.231\times 0.462=0.11m^{2}$

Incorrect
Question 151 of 200

151. Question
1 points
151. Which of the following mode of metal transfer is preferred in overhead welding?
- Gravitational mode
- Projected mode
- Repelled mode
- Short circuited mode
Correct

Incorrect
Question 152 of 200

152. Question
1 points
Which is correct for same free stream velocity?
- Surface shear stress in turbulent boundary layer is greater than laminar boundary layer
- Surface shear stress in turbulent boundary layer is smaller than laminar boundary layer
- Surface shear stress in turbulent boundary layer is equal to laminar boundary layer
- None of these
Correct

Incorrect
Question 153 of 200

153. Question
1 points
The point up to which the new railway track laid, at any time is called
- terminal
- station
- rail-head
- base
Correct

Incorrect
Question 154 of 200

154. Question
1 points
A strip is to be rolled from a thickness of 30 mm to 15 mm using a two high mill having rolls of diameter 300 mm. The coefficient of friction for unaided bite is
- 0.35
- 0.5
- 0.25
- 0.07
Correct

Incorrect
Question 155 of 200

155. Question
1 points
Generally the life of wooden sleepers is taken as:
- 2 to 3 years
- 12 to 15 years
- 35 to 50 years
- 5 to 8 years
Correct

Incorrect
Question 156 of 200

156. Question
1 points
156. If y = f(x) be the solution of the given equation $\frac{\mathrm{d}y}{\mathrm{d}x}=\frac{x^{2}}{x^{2}+1}$ such that y = 0 when x = 0 then the value of f(1) is
- 1
- $\frac{1}{4}(4-\pi)$
- $\frac{\pi}{4}+1$
- $4(4-\pi)$
Correct

$dy=\left(1-\frac{1}{x^{2}+1}\right)dx$

Integrating ,

y = x - $\tan ^{-1}x$ + C , y(0) = 0

$\therefore$ C = 0

$\therefore$ f(1) = 1- $\tan ^{-1}1$ = 1 - $\frac{\pi}{4}$

Incorrect

$dy=\left(1-\frac{1}{x^{2}+1}\right)dx$

Integrating ,

y = x - $\tan ^{-1}x$ + C , y(0) = 0

$\therefore$ C = 0

$\therefore$ f(1) = 1- $\tan ^{-1}1$ = 1 - $\frac{\pi}{4}$
Question 157 of 200

157. Question
1 points
The gradual or tapered widening of the flange way which is formed by bending and splaying the end of check rail or wing rail away from the gauge line is known as:
- Flare
- Toe
- Heel
- Loop
Correct

Incorrect
Question 158 of 200

158. Question
1 points
For what value of X the following system of equations have non-trivial solution

$\lambda x+3y+5z=0$

$2x-4\lambda y+\lambda z$ = 0

-4x + 18y + 7z = 0
- 1 or 3
- -1 or 3
- 1 or -3
- -1 or - 3
Correct

$\begin{vmatrix} \lambda & 3 & -5\\ 2 & -4\lambda & \lambda \\ -4& 18 &7 \end{vmatrix}$ = 0

$\lambda$ = -3 or 1

Incorrect

$\begin{vmatrix} \lambda & 3 & -5\\ 2 & -4\lambda & \lambda \\ -4& 18 &7 \end{vmatrix}$ = 0

$\lambda$ = -3 or 1
Question 159 of 200

159. Question
1 points
An outward slope provided on the tread of the wheel is
- 1 in 5
- 1 in 10
- 1 in 20
- 1 in 25
Correct

Incorrect
Question 160 of 200

160. Question
1 points
Statement 1: every continuous function is differentiable Statement 2: Differentiable function must be continuous Which of the statement is/are true?
- 1
- 2
- both
- None of these
Correct

Incorrect
Question 161 of 200

161. Question
1 points
The demand for a commodity is 100 units per day. Every time an order is placed, a fixed cost of Rs. 400 is incurred. Holding cost is Rs. 0.08 per unit per day. If the lead-time is 13 days, then the re-order point is
- 100 units
- 200 units
- 300 units
- 350 units
Correct

$q_{0}=\sqrt{\frac{2c_{3}R}{C_{1}}}$ = 1000 units

Length of cycle = $t_{0}$

= $\frac{1000}{100}$ = 10 days

As lead time is 13 days and cycle length is 10 days .recorded point = $(13-10\times 100)$ = 300 units

Incorrect

$q_{0}=\sqrt{\frac{2c_{3}R}{C_{1}}}$ = 1000 units

Length of cycle = $t_{0}$

= $\frac{1000}{100}$ = 10 days

As lead time is 13 days and cycle length is 10 days .recorded point = $(13-10\times 100)$ = 300 units
Question 162 of 200

162. Question
1 points
Throttling process is
- Reversible process
- Irreversible process
- Reversible in the beginning and irreversible at the end of process
- None of these
Correct

Incorrect
Question 163 of 200

163. Question
1 points
Which of the following is true for otto, duel and diesel cycles for same compression ratio and same amount of heat discharge ? (η) represents efficiency)
- $\eta _{otto}>\eta _{dual}=\eta _{diesel}$
- $\eta _{otto}<\eta _{dual}<\eta _{diesel}$
- $\eta _{otto}>\eta _{dual}>\eta _{diesel}$
- $\eta _{otto}=\eta _{dual}=\eta _{diesel}$
Correct

Incorrect
Question 164 of 200

164. Question
1 points
The sonic velocity for a fluid of specific gravity 0.8 and bulk modulus of 15,600 kgf/cm2 will be
- 1383 m/s
- 441.5m/s
- 4.41 m/s
- None of these
Correct

$C=\sqrt{\frac{K}{\rho}}=\sqrt{\frac{15600\times 9.81\times 10^{4}}{0.8\times 1000}}$ = 1383m/s

Incorrect

$C=\sqrt{\frac{K}{\rho}}=\sqrt{\frac{15600\times 9.81\times 10^{4}}{0.8\times 1000}}$ = 1383m/s
Question 165 of 200

165. Question
1 points
The following system of equations :
x - 2y + 3z = 3
2x + y - z = 9
-3x - 4y + 5z = - 8 has
- unique solution
- infinite solution
- finite number of solution
- no solution
Correct

$\begin{pmatrix} 1 & -2 & 3& 3\\ 2 & 1 & -1& 9\\ -3 & -4 & 5 & -8 \end{pmatrix}$

$\xrightarrow[3R_{1}+R_{3}]{-2R_{1}+R_{2}}\begin{pmatrix} 1 & -2 & 3& 3\\ 0 & 5 & -7& 3\\ 0 & 0 & 0 & 7 \end{pmatrix}$

$\begin{pmatrix} 1 & -2 & 3& 3\\ 0 & 5 & -7& 3\\ 0 & 0 & 0 & 7 \end{pmatrix}$

The bottom row of the final matrix corresponds to the equation 0 . x + 0. y + 0 . z = 7

which has no solution.

Incorrect

$\begin{pmatrix} 1 & -2 & 3& 3\\ 2 & 1 & -1& 9\\ -3 & -4 & 5 & -8 \end{pmatrix}$

$\xrightarrow[3R_{1}+R_{3}]{-2R_{1}+R_{2}}\begin{pmatrix} 1 & -2 & 3& 3\\ 0 & 5 & -7& 3\\ 0 & 0 & 0 & 7 \end{pmatrix}$

$\begin{pmatrix} 1 & -2 & 3& 3\\ 0 & 5 & -7& 3\\ 0 & 0 & 0 & 7 \end{pmatrix}$

The bottom row of the final matrix corresponds to the equation 0 . x + 0. y + 0 . z = 7

which has no solution.
Question 166 of 200

166. Question
1 points
Bone shaped section of fish plate is commonly used for connecting:
- double headed rails
- flat footed rails
- bull headed rails
- All above are correct
Correct

Incorrect
Question 167 of 200

167. Question
1 points
Let x be a random variable whose distribution is as follows:

$F_{x}(t)=\left \{$ for t <0
1 + $e^{2t}\: for\: t\geq 0$

If the value of p $\left (x\leq \frac{1}{3}\right)$ is
- 3.00
- 2.95
- 0.56
- None of the above
Correct

$\left (x\leq \frac{1}{3}\right)=F_{X}\leq \left (\frac{1}{3}\right)$

$1+e^{\frac{2}{3}}=2.95$

Incorrect

$\left (x\leq \frac{1}{3}\right)=F_{X}\leq \left (\frac{1}{3}\right)$

$1+e^{\frac{2}{3}}=2.95$
Question 168 of 200

168. Question
1 points
The second approximation for the root of the equation 3x = cosx + 1 between 0 and 1 with X0 = 0.6 by Newton Raphson method is:
- 0.607
- 0.517
- 0.606
- 0.350
Correct

$f(x)=3x-\cos x-1$

f(x) = 3 + $\sin x$

$x_{n+1}=x_{n}-\frac{f(x_{n})}{f'(x_{n})}=\frac{x_{n}\sin x_{n}+\cos x_{n}+1}{3+\sin x_{n}}$

Let $x_{0}$ = 0.6 , first approximation :

$x_{1}=\frac{x_{0}\sin x_{0}+\cos x_{0}+1}{3+\sin x_{0}}$

= $\frac{0.6\sin (0.6)+\cos (0.6)+1}{3+\sin (0.6)}$ = 0.6071

Second approximation :

$\frac{0.6071\sin (0.6071)+\cos (0.6071)+1}{3+\sin (0.6071)}$ = 0.6071

Incorrect

$f(x)=3x-\cos x-1$

f(x) = 3 + $\sin x$

$x_{n+1}=x_{n}-\frac{f(x_{n})}{f'(x_{n})}=\frac{x_{n}\sin x_{n}+\cos x_{n}+1}{3+\sin x_{n}}$

Let $x_{0}$ = 0.6 , first approximation :

$x_{1}=\frac{x_{0}\sin x_{0}+\cos x_{0}+1}{3+\sin x_{0}}$

= $\frac{0.6\sin (0.6)+\cos (0.6)+1}{3+\sin (0.6)}$ = 0.6071

Second approximation :

$\frac{0.6071\sin (0.6071)+\cos (0.6071)+1}{3+\sin (0.6071)}$ = 0.6071
Question 169 of 200

169. Question
1 points
Which of the following statements for the electric discharge machining process is not true
E-Source of energy is electric spark
F-Thermal energy is used machining process
G-Chemical energy is used machining process
H-Metal removal takes place because of corrosive reaction.
I-Metal removal takes place because of fusion.
- E and G only
- G and H only
- E and I only
- G and F only
Correct

Incorrect
Question 170 of 200

170. Question
1 points
The bottom width of foot in a flat footed rail is:
- 78.6 mm
- 136.5 am
- 66.7 mm
- 70 mm
Correct

Incorrect
Question 171 of 200

171. Question
1 points
A hydraulic turbine is running at 125 r.p.m. and the turbine has an overall efficiency of 90% under the discharge of 12m3/sec. What will be the specific speed of turbine if power developed by turbine is 750KW?
- 100
- 200
- 300
- 400
Correct

Incorrect
Question 172 of 200

172. Question
1 points
Choose the correct statement from the following Runner is a part of turbine
II. Impeller is a part of reaction turbine
III. Draft tube is a part of reaction turbine
IV. Cavitation phenomenon can occur anywhere i.e. either at inlet or outlet of rotor
V. Specific speed of turbine is
Equation
where N, P and H has usual meaning
- I, III and IV only
- II, TV and V only
- I, II and III only
- All are true
Correct

Incorrect
Question 173 of 200

173. Question
1 points
The rectangular pits in which wheels of the locomotives are taken out for repairs, are known as
- Track pits
- Inspection pits
- Drop pits
- Siding pits
Correct

Incorrect
Question 174 of 200

174. Question
1 points
Consider the statements given below
1. Emmissivity does not depend on surface characteristics.
2. Emmisivity of metallic surfaces decreases with temperature
3. Emmisivity is dependent on formation of oxide layer
4. Emmisivity of non-metallic surfaces increases with temperature
5. Polished metallic surfaces have low emmisivity
Which of the above statements are not true
- 1.2 and 5 only
- 1, 2 and 4 only
- 2,3 and 5 only
- All are false
Correct

Incorrect
Question 175 of 200

175. Question
1 points
Gauge is the distance measured in place of the between which faces of two parallel rails in a track?
- inner faces
- center line of one rail to inner face of other rail
- center lines
- outer faces
Correct

Incorrect
Question 176 of 200

176. Question
1 points
The gear and pinion made of different material mesh externally. The number of teeth on gear and pinion is 75 and 50 respectively. The tooth from factor is given by the relation
Equation
The permissible stresses for the pinion and gear material are 140 and 115N/mm2 respectively. Based on above data, Lewis equation will be applied to
- pinion
- gear
- both pinion and gear
- None of these
Correct

Incorrect
Question 177 of 200

177. Question
1 points
The slenderness ratio for a column hinged at both end is 75. What will be the percentage change in slenderness ratio for the column if end condition is changed to one end fixed and other hinged.
- decreases by 50%
- increases by 50%
- decreases by 29.28%
- increases by 29.28%
Correct

$\frac{l}{k}=75$ for both ends hinged,

$\frac{L}{K}=\frac{l}{\sqrt{2k}}$ for end fixed and one hinged length = $\frac{l}{\sqrt{2}}$

% Change(_{Decreases})

= $\frac{75-\frac{75}{\sqrt{2}}}{75}\times 100$ = 29.28%

Incorrect

$\frac{l}{k}=75$ for both ends hinged,

$\frac{L}{K}=\frac{l}{\sqrt{2k}}$ for end fixed and one hinged length = $\frac{l}{\sqrt{2}}$

% Change(_{Decreases})

= $\frac{75-\frac{75}{\sqrt{2}}}{75}\times 100$ = 29.28%
Question 178 of 200

178. Question
1 points
- E- III, F- IV, G - I, H – II
- E- TV, F- III, G - II, H - I
- E - III, F-IV, G - V, H - VI
- E-IV, F-III, G - VI, H - V
Correct

Incorrect
Question 179 of 200

179. Question
1 points
Consider the network shown below.

What should be the value of t if path 1-2-3-5-7-9-10 is critical path of the network?
- t > 7
- t < 7
- t > 19
- t < 19
Correct

Incorrect
Question 180 of 200

180. Question
1 points
What will be the ratio of strength factor (Gear to Pinion) for the above problem?
- 1.165
- 0.858
- 0.307
- None of these
Correct

Incorrect
Question 181 of 200

181. Question
1 points
The rails are welded by
- Thermit welding
- Gas welding
- Arc welding
- MIG welding
Correct

Incorrect
Question 182 of 200

182. Question
1 points
If a gas of volume 6000cm3 and at a pressure of 100kPa is compressed quasi-statically ac-cording to PV2 = constant until the volume becomes 2000cm3, determine the work transfer from the system
- -1.2KJ
- -1.2MJ
- 1.2KJ
- 1.2MJ
Correct

$\frac{p_{2}}{p_{1}}=\left(\frac{v_{1}}{v_{2}}\right)^{2}$

$p_{2}=\left(\frac{6000}{2000}\right)^{2}\times 100$ = 9000 kpa

dw = $\int_{v_{1}}^{v_{2}}\frac{c}{v^{2}}dv=c\left[-\frac{1}{v}\right]_{v_{1}}^{v_{2}}$

w = $p_{1}v_{1}-p_{2}v_{2}=(100\times 6000\times 10^{3}\times 10^{-6}-900\times 10^{3}\times 2000\times 10^{-6})$ = -1200j = -1.2 kj

Incorrect

$\frac{p_{2}}{p_{1}}=\left(\frac{v_{1}}{v_{2}}\right)^{2}$

$p_{2}=\left(\frac{6000}{2000}\right)^{2}\times 100$ = 9000 kpa

dw = $\int_{v_{1}}^{v_{2}}\frac{c}{v^{2}}dv=c\left[-\frac{1}{v}\right]_{v_{1}}^{v_{2}}$

w = $p_{1}v_{1}-p_{2}v_{2}=(100\times 6000\times 10^{3}\times 10^{-6}-900\times 10^{3}\times 2000\times 10^{-6})$ = -1200j = -1.2 kj
Question 183 of 200

183. Question
1 points
Match the List-I with List-II
List-I
A. Brayton cycle
B. Ottocce cycle
C. Diesel cycle
D. Carnot cycle
List-II
I. 2 Isobaric processes
ii. 2 isothermal processes
iii. 2 isochoric processes
iv. 1 constant volume and 1 constant pressure 2 process
- A-(i), B-(iv), C-(iii), D-(ii)
- A-(iii), B-(i), C-(iv), D-(ii)
- A-(i), B-(iii), C-(iv), D-(ii)
- A-(i), B-(iii), C-(ii). D-fiv)
Correct

Incorrect
Question 184 of 200

184. Question
1 points
In India generally the sleeper density of sleepers per rail length used is:
- 18
- 30
- 12
- 24
Correct

Incorrect
Question 185 of 200

185. Question
1 points
Match List I with List II
List-I
(A) Critical activity to be crashed
(B) Critical activity
(C) Dummy activity
(D) Sub-critical activity
List-II
(1) It has float
(2) It has least cost slope
(3) It maintains logic of network
(4) It has no float
- A-l, B-4, C-3, D-2
- A-3, B-4, C-l, D-2
- A-2, B-4, C-3, D-l
- A-4, B-2, C-l, D-2
Correct

Incorrect
Question 186 of 200

186. Question
1 points
A bronze bar 3m long with across-sectional area of 320 mm is placed between two rigid walls as shown in figure. At a temperature of-20°C, gap A is 2.5mm. Then the temperature at which the compressive stress in the bar will be $\sigma =35MPa\:\:is\:(\alpha =18\times 10^{-6}/^{\circ}c,E = 80GPa)$
- 50.6°C
- 51.3°C
- 48.1°C
- 54.7°C
Correct

$\delta -\Delta =\frac{pl}{A\in}$

$\delta l\Delta T=\Delta +\frac{pl}{A\in}p=\sigma A$

$l\alpha \Delta t=\Delta +\frac{\sigma l}{\in}$

$\Delta T=\frac{\Delta}{l\alpha}+\frac{\sigma}{\in \alpha}$

$\Delta T=70.6^{\circ}C$

$T=\Delta T+T_{0}=50.6^{\circ}C$

Incorrect

$\delta -\Delta =\frac{pl}{A\in}$

$\delta l\Delta T=\Delta +\frac{pl}{A\in}p=\sigma A$

$l\alpha \Delta t=\Delta +\frac{\sigma l}{\in}$

$\Delta T=\frac{\Delta}{l\alpha}+\frac{\sigma}{\in \alpha}$

$\Delta T=70.6^{\circ}C$

$T=\Delta T+T_{0}=50.6^{\circ}C$
Question 187 of 200

187. Question
1 points
Match the List-I with List-II List-I
(a) Bending moment is constant
(b) Bending moment is minimum
(c) Loading is constant
(d) Load is zero
List-II
1. Shear force changes sign
2. Slope of the shear force diagram is zero over the portion of beam
3. Shear force is zero
4. Slope of shear force diagram is constant over the portion of beam
- a- 4, b- 2, c- 3, d - 1
- a- 3, b- 1, c-2, d - 4
- a- 3, b- 1, c-4, d - 2
- a- 1, b-3, c-4, d-2
Correct

Incorrect
Question 188 of 200

188. Question
1 points
The efficiencies of various components in a thermal plant is shown in figure. The over all plant efficiency will be
- 36%
- 38%
- 34%
- 40%
Correct

Cycle $\eta=\frac{Q-0.56Q}{Q}$ = 44%

Gen output = $0.92\times 0.94\times 0.44\times 0.95Q$

& net output = (1 - 0.06) gen. output overall $\eta =0.92\times 0.94\times 0.95\times 0.94\times 0.44$

$\Rightarrow$ 34%

Incorrect

Cycle $\eta=\frac{Q-0.56Q}{Q}$ = 44%

Gen output = $0.92\times 0.94\times 0.44\times 0.95Q$

& net output = (1 - 0.06) gen. output overall $\eta =0.92\times 0.94\times 0.95\times 0.94\times 0.44$

$\Rightarrow$ 34%
Question 189 of 200

189. Question
1 points
Match List I with List II
List I
E. Chaplets
F. Chills
G. Splash cores
H. Runners
List II
I. Solidification techniques
II. Supporting members
III. Flow of molten metal
IV. Prevent flow of impurity to mould
V. Creates hollow structure
- E-I, F-II, G-V, H-III
- E - I, F - II, G - V, H - IV
- E - II, F - I, G - IV, H - III
- E - II, F - I, G - V, H - IV
Correct

Incorrect
Question 190 of 200

190. Question
1 points
The extra rails provided over bridge to prevent damage and danger in case of derailment on the bridge are known as
- Stock rails
- Guard rails
- Check rails
- Wing rails
Correct

Incorrect
Question 191 of 200

191. Question
1 points
Which of the following is not true?
(i) TIG uses a non consumable electrode
(ii) In resistance welding contact resistance should be maximum between electrode and work
(iii) In EBW voltage drop should be lower than the Arc welding
(iv) LBW can be used for the welding of plastic materials
- (i) and (ii)
- (ii) and (iii)
- (iii) and (iv)
- (i) and (iv)
Correct

Incorrect
Question 192 of 200

192. Question
1 points
The phenomenon of misalignment of rails due to temperature change is known as
- cropping
- creeping
- bulging
- buckling
Correct

Incorrect
Question 193 of 200

193. Question
1 points
In which of the following devices equation dQ = dU + dW cannot be applied:
(i) Internl combustion Engine working on otto cycle
(ii) Internal combustion Engine working on diesel cycle
(iii) Gas Turbines
(iv) Steam Turbines
- (i) and (ii)
- (ii) and (iii)
- (iii) and (iv)
- (i) and (iv)
Correct

dQ = dU + dW is only valid for closed system and gas turbine and steam turbines are open systems.

Incorrect

dQ = dU + dW is only valid for closed system and gas turbine and steam turbines are open systems.
Question 194 of 200

194. Question
1 points
194. Match the following List-I
a. Reynolds number
b. Prandtl number
c. Nusselt number
d. Gras hoff number
List-II
$\frac{Conductive\: resistance}{Convective\:resistance}$

$\frac{Kinetic\: viscosity}{Thermal\:diffusivity}$

$\frac{Inertia\: Force}{Viscous\:Force}$

$\frac{Inertia\: Force\times Buoyancy\: force}{(Viscous\:Force)^{2}}$
- 1 - a , b - 2 , c - 3 , d - 4
- 1 - c , 2 - b , 3 - a , 4 - d
- 1 - c , 2 - b , 3 - d , 4 - a
- 1 - b , 2 - c , 3 -a , 4 - d
Correct

Incorrect
Question 195 of 200

195. Question
1 points
A cylinder of 0.12 m radius rotates concentrically inside a fixed hollow cylinder of 0.13 m radius. Both the cylinders are 0.3 m long. What will the viscosity of the liquid which fills the space between the cylinders if a torque of 0.88 Nm is required to maintain angular velocity of 2π rad /s.
- 0.123
- 0.216
- 0.291
- 0.397
Correct

Torque = Sheare stress $\times$ Surface area $\times$ Torque arm

0.88 = $t(2\pi r\times 0.3)$ r

$t=\frac{0.467}{r^{2}}$

$\frac{dv}{dy}=\frac{t}{\mu}=\frac{0.467}{\mu r^{2}}$

$\int_{v_{outer}}^{v_{inner}}dv=\frac{0.467}{\mu}\int_{0.13}^{0.12}-\frac{dr}{dr^{2}}$

$V_{inner}-V_{outer}=\frac{0.467}{\mu}\left[\frac{1}{r}\right]_{0.13}^{0.12}$

0.754m/s(0.754 - 0)

= $V_{inner}-V_{outer}=\frac{0.467}{\mu}\left[\frac{1}{0.12}-\frac{1}{0.13}\right]$

$\Rightarrow \mu$ 0.397 pas

Incorrect

Torque = Sheare stress $\times$ Surface area $\times$ Torque arm

0.88 = $t(2\pi r\times 0.3)$ r

$t=\frac{0.467}{r^{2}}$

$\frac{dv}{dy}=\frac{t}{\mu}=\frac{0.467}{\mu r^{2}}$

$\int_{v_{outer}}^{v_{inner}}dv=\frac{0.467}{\mu}\int_{0.13}^{0.12}-\frac{dr}{dr^{2}}$

$V_{inner}-V_{outer}=\frac{0.467}{\mu}\left[\frac{1}{r}\right]_{0.13}^{0.12}$

0.754m/s(0.754 - 0)

= $V_{inner}-V_{outer}=\frac{0.467}{\mu}\left[\frac{1}{0.12}-\frac{1}{0.13}\right]$

$\Rightarrow \mu$ 0.397 pas
Question 196 of 200

196. Question
1 points
Which of the following helps in achieving directional solidification of casting
1. Riser
2. Gating System
3. Chills
4. Chaplets
5. Padding
- 1,2 and 3
- 2,3 and 4
- 1,3 and 5
- 1,2,3 and 5
Correct

Incorrect
Question 197 of 200

197. Question
1 points
Directions (197-198): A fly wheel for a punch press must be capable of furnishing 2.7 KJ of energy during the 1/4 revolution while hole is being punched. The maximum speed of the flywheel is 200rev/min and the speed decreases 10% during the cutting stroke. The mean radius of rim is 915mm.

What should be the total mass of the flywheel assuming that the mass of the flywheel is 1.15 times that of the rim? It has also been assumed that The flywheel rim contributes only 90% of the energy requirement.
- 69.6 kg
- 80 kg
- 149.6kg
- 172.84kg
Correct

Mass of fly Wheel rim $m_{r}=\frac{2KE}{r^{2}(w_{1}-w_{2})^{2}}$

$\frac{2\times 0.90\times 207\times 10^{3}}{(0915)^{2}\left[\left(\frac{2\pi\times 200}{60}\right)^{2}-\left(\frac{2\pi \times 180}{60}\right)^{2}\right]}$
= 69.6 kg

Total mass of flywheel = $1.15\times 69.6$ = 80 kg

Incorrect

Mass of fly Wheel rim $m_{r}=\frac{2KE}{r^{2}(w_{1}-w_{2})^{2}}$

$\frac{2\times 0.90\times 207\times 10^{3}}{(0915)^{2}\left[\left(\frac{2\pi\times 200}{60}\right)^{2}-\left(\frac{2\pi \times 180}{60}\right)^{2}\right]}$
= 69.6 kg

Total mass of flywheel = $1.15\times 69.6$ = 80 kg
Question 198 of 200

198. Question
1 points
Co-efficient of speed fluctuation is

$C_{s}=\frac{\omega _{1}-\omega _{2}}{\omega}$ = 0.105
- 0.105
- 0.115
- 0.125
- 0.15
Correct

Co - efficient of speed fluctuation is

Incorrect

Co - efficient of speed fluctuation is
Question 199 of 200

199. Question
1 points
Directions (199-200): A tank connected to 3 pipelines P₁, P₂ and P₃ whose lengths are in the ratio 1 : 2 : 3 and diameter is also in the ratio 1 : 2 : 3. The sum of length for all the pipes is 18m and product of diameters is 20250mm³. It has been found that head loss due to friction in pipe P₁ is sum of head loss in P₂ and P₃. Assume same friction factor for all pipe lines.

What will be the value

$\frac{Q_{3}}{Q_{2}}$ iF $\frac{Q_{1}}{Q_{2}}=\frac{2}{3}$ , Where $Q_{i}$ represent the charge in pipe line i
- $\frac{17}{3}$
- $\frac{3}{17}$
- $\frac{17}{2}$
- $\frac{2}{17}$
Correct

$L_{1}+L_{2}+L_{3}=18$

$\Rightarrow$ K + 2K + 3K=18, K = 3

$L_{1}=3\: ,L_{2}=6\: ,L_{3}=9$

$d_{1}\times d_{2}\times d_{3}$ = 20250

$\Rightarrow 3k\times 2k\times k$ = 202550 , k = 15

$d_{1}$ = 15 mm , $d_{2}$ = 30 mm ,

$d_{1}$ = 45 mm

$Q_{1}=A_{1}V_{1}=\frac{\pi}{4}d_{1}^{2}\times v_{1}$

$\Rightarrow V_{1}=\frac{4Q_{1}}{\pi d_{1}^{2}}$

Similarly $V_{2}=\frac{4Q_{2}}{\pi d_{2}^{2}}$

and $V_{3}=\frac{4Q_{3}}{\pi d_{3}^{2}}$

Head loss due to friction

$\frac{4fL_{1}^{2}V_{1}^{2}}{d_{1}\times 2g}=\frac{4fL_{2}V_{2}^{2}}{d_{2}\times 2g}+\frac{4fL_{3}V_{3}^{2}}{d_{3}\times 2g}$

On solving above equation we get ,

$\frac{Q_{3}}{Q}=\frac{17}{3}$

Incorrect

$L_{1}+L_{2}+L_{3}=18$

$\Rightarrow$ K + 2K + 3K=18, K = 3

$L_{1}=3\: ,L_{2}=6\: ,L_{3}=9$

$d_{1}\times d_{2}\times d_{3}$ = 20250

$\Rightarrow 3k\times 2k\times k$ = 202550 , k = 15

$d_{1}$ = 15 mm , $d_{2}$ = 30 mm ,

$d_{1}$ = 45 mm

$Q_{1}=A_{1}V_{1}=\frac{\pi}{4}d_{1}^{2}\times v_{1}$

$\Rightarrow V_{1}=\frac{4Q_{1}}{\pi d_{1}^{2}}$

Similarly $V_{2}=\frac{4Q_{2}}{\pi d_{2}^{2}}$

and $V_{3}=\frac{4Q_{3}}{\pi d_{3}^{2}}$

Head loss due to friction

$\frac{4fL_{1}^{2}V_{1}^{2}}{d_{1}\times 2g}=\frac{4fL_{2}V_{2}^{2}}{d_{2}\times 2g}+\frac{4fL_{3}V_{3}^{2}}{d_{3}\times 2g}$

On solving above equation we get ,

$\frac{Q_{3}}{Q}=\frac{17}{3}$
Question 200 of 200

200. Question
1 points
The ratio Q₁ : Q₂ : Q₃ will be
- 2 : 3 : 17
- 3 : 2 : 17
- 17 : 2 : 1
- 1 : 17 : 3
Correct

Incorrect