# Civil Engineering - UPSC Civil Service Exam Questions

46.

What does super-saturation of water body with DO cause ?

 A. Eutrophication B. Gas bubble disease in fish C. Methamoglobinemia D. Endemic goitre

Explanation:

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47.

In a third order traverse, if the standard error of ± 3" is assigned to each of the four source of errors, namely :
(iii) sighting and
(iv) setting over the station, then the total standard error of the work would be

 A. ±3" B. ±6" C. ±6.92" D. ±12"

Explanation:

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48.

Which one of the following statements is correct ?

 A. The axis of plate level should be parallel to the vertical axis. B. The axis of striding level must be parallel to the horizontal axis. C. The axis of the altitude level must be perpendicular to the plate level axis. D. The line of collimation must be perpendicular to the plate level axis.

Explanation:

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49.

Consider the following statements regarding settlement of foundations :
1. Differential settlement of foundation leads to structural damage to the superstructure.
2. In non-cohesive soils, the major component of settlement is due to consolidation.
3. Lowering of ground water table contributes of settlement of foundations.
Of these statements :

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

Explanation:

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50.

A solid circular shaft is subjected to a bending moment M and torque T. The ratio of maximum bending stress to the maximum shear stress is given by

 A. MT/2 B. 2M/T C. M/2T D. M/T