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Fluid Mechanics

Fluid Mechanics
The ratio of inertial forces to elastic forces is called the __________ number.

Weber
Reynolds
Euler
Mach

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Fluid Mechanics
Choose the set of pressure intensities that are equivalent.

4.33 psi, 10 ft. of water, 8.83 inches of Hg
10 psi, 19.7 ft. of water, 23.3 inches of Hg
10 psi, 19.7 ft. of water, 5.3 inches of Hg
4.33 psi, 10 ft. of water, 20.7 inches of Hg

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Fluid Mechanics
Permanent pressure loss in a well designed venturimeter is about __________ percent of the venturi differential.

30
50
10
1

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Fluid Mechanics
The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is

2HW/(H + W)²
√(HW/π)
HW/2(H + W)²
HW/4(H + W)²

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Fluid Mechanics
For laminar flow through a closed conduit

Vmax = Vav
Vmax = 1.5Vav
Vmax = 2Vav
Vmax = 0.5Vav

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Fluid Mechanics
The ratio of inertial forces to gravity forces is called the __________ number.

Weber
Mach
Euler
Froude

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MORE MCQ ON Fluid Mechanics

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