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Fluid Mechanics

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

50
10
1
30

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Fluid Mechanics
The capacity of an accumulator is the maximum

Liquid which it can store
None of these
Discharge which it can deliver
Energy which it can store

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Fluid Mechanics
Which of the following is used for very accurate measurement of flow of gas at low velocity?

Pitot tube
Rotameter
Hot wire annemometer
Segmental orificemeter

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Fluid Mechanics
Which of the following exemplifies a three dimensional fluid flow ?

Fluid flow at the inlet to a nozzle
None of these
Viscous fluid flow between converging plates
Fluid flow between parallel plates

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Fluid Mechanics
The resistance wire used in a hot wire anemometer for conducting electrical current is made of

Chromium
Tungsten
Aluminium
Copper

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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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