# Civil Engineering - UPSC Civil Service Exam Questions

11.

A concentrated load acting on the surface of a soil produces a stress of 19.1 kPa at a depth of 1 m below it. Using Boussinesq's expression, the stress at 2 m depth is

 A. 9.55 kPa B. 6.37 kPa C. 4.775 kPa D. 4.37 kPa

Explanation:

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12.

Consider the following statements :
Seasoning of timber results is
1. increased strength
2. increased durability.
3. reduced resilience.
Of these statements :

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

Explanation:

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13.

Gypsum is added to Portland cement during its manufacture so that it may

 A. accelerate the setting time B. retard the setting time C. decrease the burning temperature D. facilitate grinding

Explanation:

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14.

If the velocity potential φ = 4 xy, what are the x and y components of velocity at the point(1, 4) ?

 A. u = - 16, v = - 4 B. u = - 4, v = - 16 C. u = 16, v = - 4 D. u = 16, v = 16

Explanation:

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15.

Unit cost of any item of work can be found by using

 A. specifications B. value analysis C. economic analysis D. rate analysis