Civil Engineering MCQAE Level Civil Engineering
If diameter of a circular pipe carrying laminar flow is reduced to half, wall shear stress increases by factor
Fluid MechanicsFluid MechanicsMEDIUM
Choose the correct answer
A
2
B
4
C
8
D
16
Correct Answer
C. 8
Why is this the answer?
For a fixed flow rate in a pipe, wall shear stress varies inversely as d^3; halving d gives 8 times
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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.