Civil Engineering MCQAE Level Civil Engineering
At critical flow in an open channel, the Froude number is:
Fluid MechanicsFluid Mechanics and HydraulicsHARD
Choose the correct answer
A
greater than 1
B
0
C
less than 1
D
equal to 1
Correct Answer
D. equal to 1
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Critical flow occurs when inertial and gravity effects balance, so Fr = 1 and specific energy is minimum for a given discharge.
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