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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the regulating valve is provided on the

Suction pipe
Delivery pipe
Impeller
Casing

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Hydraulics and Fluid Mechanics in ME
Choose the correct relationship

specific gravity = gravity x density
gravity = specific gravity x density
dynamicviscosity = kinematicviscosity x density
kinematicviscosity = dynamicviscosity x density

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Hydraulic jump
Velocity of flow in an open channel
Depth of channel
Depth of flow in an open channel

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

is independent of temperature
decreases with increase in temperature
increases with increase in temperature
is independent of pressure for very high pressure intensities

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Hydraulics and Fluid Mechanics in ME
The cavitation in a hydraulic machine

Causes noise and vibration of various parts
All of these
Causes sudden drop in power output and efficiency
Reduces the discharge of a turbine

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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
Vacuum pressure
Gauge pressure

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