Q
Shear stress in a fluid flowing in a round pipe_________________?
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A
A. Varies parabolically across the cross-section
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B
B. Remains constant over the cross-section
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C
C. Is zero at the centre and varies linearly with the radius
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D
D. Is zero at the wall and increases linearly to the centre
Correct Answer:
C. C. Is zero at the centre and varies linearly with the radius
