Hydraulics and Fluid Mechanics - Mechanical Engineering Questions and Answers

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Froude's number is the ratio of inertia force to

pressure force

elastic force

gravity force

surface tension force

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According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

\(A \sqrt{m \times i}\)

\(C \sqrt{m \times i}\)

\(AC \sqrt{m \times i}\)

\(mi \sqrt{A \times C}\)

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When a liquid is flowing through a pipe, the velocity of the liquid is

maximum at the centre and minimum near the walls

minimum at the centre and maximum near the walls

zero at the centre and maximum near the walls

maximum at the centre and zero near the walls

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The pressure of fluid due to hammer blow is

directly proportional to density of fluid

inversely proportional to density of fluid

directly proportional to (density)^1/2 of fluid

inversely proportional to (density)^1/2 of fluid