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Fluid Mechanics

Fluid Mechanics
Cd is always __________ Cc.

Either more or less than
Greater than
Equal to
Less than

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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/2(H + W)²
√(HW/π)
HW/4(H + W)²

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Fluid Mechanics
Cavitation in a centrifugal pump results from

High discharge rate
Low barometric pressure
High discharge pressure
High discharge velocity

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Fluid Mechanics
Steady uniform flow is represented by flow through a/an

Expanding tube at constant rate
Long pipe at constant rate
Long pipe at decreasing rate
None of these

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Fluid Mechanics
Euler's equation of motion is a statement expressing

Newton's first law of motion
Conservation of energy
Conservation of mass
Newton's second law of motion

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

Froude
Euler
Reynold
Mach

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