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PSC Civil Engg: Fluid Mechanics Quiz 6

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Question 1

Which of the following is the CORRECT representation of sequence of surface profiles if the channel slope changes from mild to steep?

Question 2

A solid cylinder of length H, diameter D and of relative density S floats in neutral equilibrium in water with its axis vertical. What is the ratio of H to D if S = 0.6?

Question 3

For a hydraulically efficient rectangular channel of bed width 5m, the hydraulic radius is

Question 4

Which one of the following statements is not correct?
A control section in an open channel is the site

Question 5

Two reservoirs are connected by two pipes P and Q. The pipes have the same diameter and length and are placed in parallel. If the friction factor of P is 9 times that of Q, then the discharge in P to that in Q is
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