Civil Engineering MCQJE Level Civil Engineering
A rectangular channel section is most efficient when the
Strength of MaterialsFluid Mechanics & HydraulicsMEDIUM
Choose the correct answer
A
hydraulic radius is equal to half the depth of flow
B
hydraulic radius is equal to the depth of flow
C
depth of flow is equal to the bottom width
D
depth of flow is equal to half the hydraulic radius
Correct Answer
A. hydraulic radius is equal to half the depth of flow
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For the most efficient rectangular section, b = 2y and the hydraulic radius R = y/2 (half the depth of flow).
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This MCQ belongs to WBPSC JE (Civil) Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.