UPSC Civil Service Exam Questions

Q1: A right-angled triangular channel, symmetrical in section about the vertical, carries a discharge of 5 m3 /s with a velocity of 1.25 m/s. What is the approximate value of the Froude number of the flow ?

A 0.3

B 0.4

C 0.5

D 0.6

ANS:B - 0.4

Here d= 1.22√Q.
& Fr = v/gd.



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