Civil Engineering - UPSC Civil Service Exam Questions

21. 

The best design of an arch dam is when

A. all horizontal water loads are transferred horizontally to the abutments
B. the dam is safe against sliding at various levels
C. the load is divided between the arches and cantilevers and the deflections at the conjugal points being equal
D. the deflections of the cantilevers are equal at different points

Answer: Option C

Explanation:

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22. 

Which one of the following is the appropriate field test for estimating the angle of shearing resistance φ of a sand deposit ?

A. Field vane shear test
B. Plate load test
C. Standard penetration test
D. Electrical resistivity test

Answer: Option C

Explanation:

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23. 

In setting out a long straight line for the position of transmission towers, it is recommended that the forward point be set out with face-right and face-lett with reference to preceding point and the mean position taken. This field procedure eliminates instruments error where the

A. trunnion axis is not perpendicular to vertical axis
B. vertical axis is not perfectly vertical time of observation
C. line of collimation is not perpendicular to the vertical axis
D. line of collimation is not perpendicular to the horizontal axis

Answer: Option D

Explanation:

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24. 

A vane 20 cm long and 10 cm in diameter was pressed into a soft marine clay at the bottom of a bore hole. Torque was applied gradually and failure occurred at 1000 kg cm. The cohesion of the clay in kg/cm2 is :

A.
B.
C.
D.

Answer: Option A

Explanation:

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25. 

Which one of following is not correct for container ports ?

A. The berth capacity is great
B. Overall transit time is less
C. There is minimal damage to cargo
D. Minimal land is required for the marshalling area

Answer: Option B

Explanation:

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