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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Highly turbulent flow
Smooth and streamline flow
Steady flow
Laminar flow

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

absolute pressure
velocity of fluid
flow
rotation

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Hydraulics and Fluid Mechanics in ME
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

The area is horizontal
The area is inclined
The area is vertical
All of these

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

None of these
More than
Less than
Same as

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Hydraulics and Fluid Mechanics in ME
In order to avoid cavitation in centrifugal pumps

The delivery pressure should be low
The delivery pressure should be high
The suction pressure should be low
The suction pressure should be high

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

May increase or decrease depending on the characteristics of liquid
Decrease
Remain unaffected
Increase

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