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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

pressure of the liquid displaced
depth of immersion
mass of liquid displaced
viscosity of the liquid

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

0.5 a. √2gH
0.707 a. √2gH
√2gH
0.855 a. √2gH

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Hydraulics and Fluid Mechanics in ME
Barometer is used to measure

Difference of pressure between two points
Very low pressure
Pressure in pipes, channels etc.
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

None of these
Both A and B
A compressible
An incompressible

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Double
One-half
Three fourth
Equal to

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Hydraulics and Fluid Mechanics in ME
The efficiency of a Pelton wheel working under constant head ________ with the increase in power.

None of these
Remain same
Increases
Decreases

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