# 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

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 D. 2.5

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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

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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

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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