Civil Engineering - UPSC Civil Service Exam Questions

41. 

What is the wave velocity for a uniform train of wave beyond the storm centre for a wave length of 20 m in 14 m deep water ?

A. 5.5 m/s
B. 11.2 m/s
C. 4.5 m/s
D. 9 m/s

Answer: Option C

Explanation:

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42. 

Maximum shear stress developed in a beam of rectangular section bears a constant ratio to its average shear stress and this ratio is equal to

A. 1.33
B. 1.5
C. 2.0
D. 2.5

Answer: Option B

Explanation:

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43. 

A circular pipe of radius R carries a laminar flow of a fluid. The average velocity is indicated as the local velocity at what radical distance, measured from the centre ?

A. 0.50 R
B. 0.71 R
C. 0.67 R
D. 0.29 R

Answer: Option B

Explanation:

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44. 

Radial splits in timber originating from 'Bark' and narrowing towards the 'Pith' are known as

A. heart shakes
B. star shakes
C. cup shakes
D. knots

Answer: Option B

Explanation:

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45. 

What is the condition for maximum transmission of power through a nozzle at the end of a long pipe ?(where H = total head at the inlet of the nozzle, hf = head loss due to friction )

A. H = hf/3
B. hf = H/2
C. hf = H/3
D. H = hf/2

Answer: Option C

Explanation:

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