Civil Engineering MCQJE Level Civil Engineering
For the most economical rectangular open channel section, the hydraulic radius is equal to:
Fluid MechanicsEconomical Rectangular ChannelMEDIUM
Choose the correct answer
A
Half the flow depth
B
Twice the flow depth
C
The bed slope
D
The rainfall intensity
Correct Answer
A. Half the flow depth
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For the best rectangular channel, width equals twice depth and hydraulic radius equals y/2.
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This MCQ belongs to SSC JE Civil Paper-I Technical Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.