# Civil Engineering - UPSC Civil Service Exam Questions

31.

Which one of the following statements is correct ?
The portal method of structural analysis is generally suitable for

 A. tall buildings B. low-rise buildings C. low-rise buildings with uniform framing D. low-rise buildings with non-uniform framing.

Explanation:

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32.

How high should a helicopter pilot rise at a point. A just to see the horizon at point B, if the distance AB is 40 km ?

 A. 101.75 m B. 110.50 m C. 107.75 m D. 105.50 m

Explanation:

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33.

A cantilever beam 'A' with rectangular cross-section is subjected to a concentrated load at its free end. If width and depth of another cantilever beam 'B' are twice those of beam A, then the deflection at free end of the beam 'B' as compared to that of 'A' will be

 A. 6.25% B. 14% C. 23.6% D. 28%

Explanation:

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34.

A bar of square section is subjected to a pull of 10000 kg. If the maximum allowable shear stress on any section is 500 kg/cm2, then the side of the square section will be

 A. 5 cm B. 10 cm C. 15 cm D. 20 cm

Explanation:

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35.

A clay sample has a void ratio of 0.54 in dry state. The specific gravity of soil solids is 2.7. What is the shrinkage limit of the soil ?

 A. 8.5% B. 10.0% C. 17.0% D. 20.0%