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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)

(1 + sin φ)/2
(1 - cos φ)/2
(1 + cos φ)/2
(1 - sin φ)/2

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

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

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Hydraulics and Fluid Mechanics in ME
Fluid is a substance which offers no resistance to change of

Shape
Volume
Pressure
Flow

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Hydraulics and Fluid Mechanics in ME
The Newton's law of resistance is based on the assumption that the

Fluid particles do not exert any influence on one another
All of these
Space around the body is completely filled with the fluid
Planes of the body are completely smooth

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Hydraulics and Fluid Mechanics in ME
One poise is equal to

0.1 N-s/m2
10 N-s/m2
1 N-s/m2
100 N-s/m2

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Hydraulics and Fluid Mechanics in ME
In one dimensional flow, the flow

Takes place in one direction
Is steady and uniform
Takes place in straight line
Takes place in curve

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