Civil Engineering - UPSC Civil Service Exam Questions

31. 

Which of the following advantages accrue to the use of Articulate Dump Trucks (ADT) over Rigid Dump Trucks (RDT) for construction and earth moving work ?
1. Higher manoeuverability
2. Low turning radius.
3. Lower fleet costs.
Select the correct answer using the code given below :

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

Answer: Option B

Explanation:

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32. 

A bar of square cross-section, having area of cross-section 'A' is subjected to a compressive force 'P' as shown in the figure. The intensity of the tangential stress on the oblique plane is given by

A. P sin 2θ
B. P cos 2θ
C.
D.

Answer: Option C

Explanation:

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33. 

Which one of the following statements is correct ?
Linear arch is one which represents :

A. centre line of an arch
B. variation of bending moment
C. thrust line
D. variation of shear force

Answer: Option C

Explanation:

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34. 

The two-peg test in the adjustment of a dumpy level employs the principle that

A. equal lengths at back sight and fore sight do not affect the difference in level.
B. reciprocal levelling eliminates errors of non-parallel instrument and collimation axes.
C. two readings from the same station will minimize errors in bubble tube axis.
D. correction is made for verticle axis at one peg and for horizontal axis at the other peg.

Answer: Option A

Explanation:

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35. 

Undisturbed soil samples are required for conducting

A. hydrometer test
B. shrinkage limit test
C. consolidation test
D. specific gravity test

Answer: Option C

Explanation:

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