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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Fluid
Water
Gas
Ideal fluid

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Hydraulics and Fluid Mechanics in ME
When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as

Ogee weir
Submerged weir
Broad-crested weir
Narrow-crested weir

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Hydraulics and Fluid Mechanics in ME
The pressure of a liquid measured with the help of a Piezometer tube is

Absolute pressure
Atmospheric pressure
Gauge pressure
Vacuum pressure

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Hydraulics and Fluid Mechanics in ME
Motion of a liquid in a volute casing of a centrifugal pump is an example of

Rotational flow
Forced spiral vortex flow
Spiral vortex flow
Radial

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Hydraulics and Fluid Mechanics in ME
The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency (ηo) is

None of these
ηh = ηo × ηm
ηm = ηm × ηh
ηo = ηh × ηm

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Hydraulics and Fluid Mechanics in ME
The volume of a fluid __________ as the pressure increases.

Increases
None of these
Remains same
Decreases

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