# Civil Engineering - UPSC Civil Service Exam Questions

16.

A simply supported beam of span 'l' is loaded (as shown in the given figure) with a uniformly varying load of intensity w1/unit length at 'A' to w2/unit length at 'B'. A The shear force at the support 'B' is given by A. B. C. D. Explanation:

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17.

In the PERT analysis, which one of the following is followed by the time estimate of activities and probability of either occurrance ?

 A. Normal distribution B. Poisson's distribution C. β - distribution D. Binomial distribution.

Explanation:

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18.

The cable for a prestressed concrete simply supported beam subjected to uniformly distributed load over the entire span should ideally be :

 A. placed at the centre of cross-section over the entire span B. placed at some eccentricity over the entire span C. varying linearly from the centre of cross-section at the ends to maximum eccentricity at the middle section D. parabolic with zero eccentricity at the ends and maximum eccentricity at the center of the span

Explanation:

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19.

The effort 'P' to be applied horizontally to pull a weight 'W' on a plane inclined at an angle α with the horizontal is given by (tan θ is the coefficient of friction)

 A. P = W tan (α + θ) B. P = W tan (α - θ) C. D. Explanation:

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20.

If two triangulation signals of 6.75 m height each, are to be just visible over ground mutually, what is the maximum distance between their locations on the ground surface ?

 A. 10 km B. 20 km C. 30 km D. 40 km