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

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

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Hydraulics and Fluid Mechanics in ME
Venturimeter is used to

Measure the pressure of a flowing liquid
Measure the velocity of a flowing liquid
Measure the pressure difference of liquid flowing between two points in a pipe line
Measure the discharge of liquid flowing in a pipe

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Hydraulics and Fluid Mechanics in ME
The hammer blow in pipes occurs when

The flow of fluid through the pipe is suddenly brought to rest by closing of the valve
There is excessive leakage in the pipe
The flow of fluid through the pipe is gradually brought to rest by closing of the valve
The pipe bursts under high pressure of fluid

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