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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

Decreases
Remain same
None of these
Increases

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant pressure, the speed capacity and power vary

Directly as the air or gas density
Inversely as square root of density
As square of density
Inversely as density

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Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

U-tube with water
micro-manometer with water
U-tube with mercury
inclined U-tube

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Hydraulics and Fluid Mechanics in ME
The undershot water wheels are those in which

The wheel runs partly by the weight of water and partly by the impulse of water
None of these
The wheel runs entirely by the weight of water
The wheel runs entirely by the impulse of water

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water from deep wells?

Reciprocating pump
Jet pump
Centrifugal pump
Air lift pump

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Hydraulics and Fluid Mechanics in ME
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is

None of these
1
0.5
0.25

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