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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The product of mass and acceleration of flowing liquid is called

Inertia force
Viscous force
Gravity force
Pressure force

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary

Inversely as square root of density
Inversely as density
Directly as the air or gas density
As square of density

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Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is

0.392
0.848
0.488
0.884

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

102 watts
735 watts
75 watts
550 watts

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Hydraulics and Fluid Mechanics in ME
A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be

1 m
None of these
100m
10m

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Hydraulics and Fluid Mechanics in ME
A Piezometer tube is used only for measuring

High pressure
Low pressure
Vacuum pressure
Moderate pressure

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