Civil Engineering MCQAE Level Civil Engineering
For a best symmetrical trapezoidal section of an open channel with given area and side slopes, which statement holds true?
Fluid MechanicsFluid MechanicsMEDIUM
Choose the correct answer
A
Half the top width is equal to one of the side slopes
B
Half the top width plus bottom width equals both side slopes together
C
Water depth is equal to half bottom width
D
Hydraulic mean depth is equal to half the top width
Correct Answer
A. Half the top width is equal to one of the side slopes
Why is this the answer?
For the most economical trapezoidal channel, half the top width equals the length of one sloping side
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.