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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The width of the bucket for a Pelton wheel is generally ________ the diameter of jet.

Five times
Four times
Three times
Double

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Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Pressure in cylinder vs. swept volume
Pressure vs. speed
Flow vs. swept volume
Flow vs. speed

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

Suction pipe
Impeller
Casing
Delivery pipe

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

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

hot wire anemometer
Venturimeter
pitot tube
rotameter

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Hydraulics and Fluid Mechanics in ME
In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.

More than
Less than
Equal to
None of these

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