# Civil Engineering - GATE Exam Questions

### Exercise :: GATE Exam Questions - Section 6

31.

A borrow pit soil has a dry density of 17 kN/m3. How many cubic meters of this soil will be required to construct an embankment of 100 m3 volume with a dry density of 16 kN/m3.

 A. 94 m3 B. 106 m3 C. 100 m3 D. 90 m3

Answer: Option A

Explanation:

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32.

The ultimate bearing capacity of a soil is 300 kN/m2. The depth of foundation is 1 m and unit weight of soil is 20 kN/m3. Choosing a factor of safety of 2.5, the net safe bearing cacpacity is

 A. 100 kN/m2 B. 112 kN/m2 C. 800 kN/m2 D. 100.5 kN/m2

Answer: Option D

Explanation:

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33.

One of the following statements is true with regards to bodies that float or are submerged in liquids :

 A. For a body wholly submerged in a liquid the stability is ensured if the centre of buoyancy is below the centre of gravity of the body B. For a body floating in a liquid the stability is ensured if the centre of buoyancy is below the centre of gravity of the body C. For a body floating in a liquid the stability is ensured if the centre of buoyancy and the centre of gravity, regardless of the relative positions of the centre of buoyancy and gravity D. For a body floating in a liquid the stability is ensured if the centre of buoyancy is below the centre of gravity and the metacentre is above both the centres of gravity and buoyancy.

Answer: Option D

Explanation:

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34.

Transition curves are provided on the approach to horizontal curves in order to :

 A. increase jerk to allowable levels B. minimize the length of the horizontal curve C. simplify the laying-out and construction of the horizontal curve D. reduce jerk to allowable levels

Answer: Option D

Explanation:

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35.

The flow of water (mass density = 1000 kg/m3 and kinematic viscosity = 10-6 m2/s) in a commercial pipe, having equivalent roughness ks as 0.12 mm, yields an average shear stress at the pipe boundary = 600 N/m2. The value of ks/δ' (δ' being the thickness of laminar sub-layer) for this pipe is

 A. 0.25 B. 0.5 C. 6 D. 8

Answer: Option D

Explanation:

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