Civil Engineering - UPSC Civil Service Exam Questions

41. 

What will be the curve lead for a 1 in 8 1/2 turnout taking off from a straight broad gauge track?

A. 28.49 m
B. 21.04 m
C. 14.24 m
D. 7.45 m

Answer: Option A

Explanation:

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42. 

A timber beam of 100 mm width and 200 mm depth is reinforced with two steel plates of 100 mm width and 5 mm thickness as shown in figures.

Which one of the following statements is correct for the same value of bending stress in the timber ?

A. Moment of resistance in figure I will be more than that in figure II
B. Moment of resistance in figure II will be more than that in figure I
C. Moment of resistance in figure I will be equal to that in figure II
D. No logical comparison can be made

Answer: Option A

Explanation:

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43. 

The following statements relate to the pressure exerted by a fluid on a Submerged curved surface :
1. The vertical component of hydrostatic force acting on a submerged curved surface acts through the centre of volume of the fluid directly above the submerged area.
2. The horizontal component of the force acting on a curved surface is the hydrostatic force acting on the vertical projection of the curved surface.
3. The resultant force on a curved surface acts on the bottom of th6 curved surface.
Of these statements :

A. 1, 2 and 3 are correct
B. 2 and 3 are correct
C. 1 and 2 are correct
D. 1 and 3 are correct

Answer: Option C

Explanation:

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44. 

The lost time due to starting delay on a traffic signal is noted to be 3s, the actual green time is 25s and yellow time is 3s. How much is the effective green time ?

A. 31s
B. 28s
C. 25s
D. 22s

Answer: Option C

Explanation:

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45. 

Consider the following locations of a turnout:
1. Tongue rail
2. Lead rail
3. Toe of switch
4. Crossing.
Which is the correct sequence for a train to pass over the turnout from the facing direction?

A. 3 - 1 - 2 - 4
B. 4 - 2 - 1 - 3
C. 3 - 2 - 1 - 4
D. 4 - 1 - 2 - 3

Answer: Option A

Explanation:

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