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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the newtoneon fluid is

linear
inverse type
parabolic
hyperbolic

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Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,

One-fourth
One-half
Three-fourth
Double

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Hydraulics and Fluid Mechanics in ME
Cavitation is caused by

high velocity
weak material
high pressure
low pressure

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Hydraulics and Fluid Mechanics in ME
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.81 times
0.67 times
0.34 times
0.95 times

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Hydraulics and Fluid Mechanics in ME
A pressure of 25 m of head of water is equal to

25 kN/m2
245 kN/m2
2.5 kN/m2
2500 kN/m2

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is greater than the critical depth, the flow is called

Turbulent flow
Tranquil flow
Critical flow
Torrential flow

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