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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

10000
2700
2100
21000

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Hydraulics and Fluid Mechanics in ME
Cavitation is caused by

high velocity
weak material
high pressure
low pressure

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Hydraulics and Fluid Mechanics in ME
The depth of the centre of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

5.0 m
2.4 m
3.0 m
4.0 m

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Hydraulics and Fluid Mechanics in ME
The absolute pressure is equal to

Atmospheric pressure - gauge pressure
Gauge pressure - vacuum pressure
Gauge pressure - atmospheric pressure
Gauge pressure + atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
The depth ā€˜d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)

0.223 D
0.423 D
0.707 D
0.577 D

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Hydraulics and Fluid Mechanics in ME
A hydraulic coupling belongs to the category of

Power developing machines
Energy transfer machines
Energy generating machines
Power absorbing machines

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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