# Civil Engineering - UPSC Civil Service Exam Questions

31.

A particle of mass 3 kg moving in a straight line decelerates uniformly from a speed of 40 m/s to 20 m/s in a distance of 300 m. Before it comes to rest, it will travel a further distance pf

 A. 10 m B. 20 m C. 50 m D. 100 m

Explanation:

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32.

For designing end bearing piles of square cross-section in clays having average unconfmed compressive strength of 6 t/m2, the net ultimate bearing capacity may be taken as

 A. 15 t/m2 B. 18 t/m2 C. 20 t/m2 D. 27 t/m2

Explanation:

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33.

The side AD of the square block ABCD as shown in the given figure is fixed at the base and it is under a state of simple shear causing shear stress τ and shear strain π, where The distorted shape is AB'C'D. The diagonal strain (linear) will be A. B. C. φ2 D. φ

Explanation:

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34.

Consider the following statements :
Collision diagram is used to
1. study accident pattern
2. eliminate accidents
3. determine remedial measures
4. make statistical analysis of accidents
Of these statements :

 A. 1 and 2 are correct B. 1 and 3 are correct C. 3 and 4 are correct D. 2 and 4 are correct

Explanation:

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35.

Consider the following statements :
1. An ascending gradient of 1 in 100 meets an ascending gradient of 1 in 120 to form a Valley curve.
2. A falling gradient of 1 in 25 meets a falling gradient of 1 in 50 to form a summit curve.
3. The length of summit curve is determined on the basis of head light sight distance.
Which one of the statements given above is/are correct ?

 A. 1 and 2 B. 2 and 3 C. 1 and 3 D. 2 only