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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H
P/ H3/2
P/ √H
P/ H²

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Hydraulics and Fluid Mechanics in ME
Which of the following is dimensionless?

Specific weight
Specific speed
Specific volume
Specific gravity

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Hydraulics and Fluid Mechanics in ME
If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is

43924
2
4
1

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Hydraulics and Fluid Mechanics in ME
Hydraulic accumulator is used for

Accumulating oil
Generally high pressures to operate hydraulic machines
Supplying large quantities of oil for very short duration
Supplying energy when main supply fails

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Hydraulics and Fluid Mechanics in ME
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

1 kg
100 kg
10 kg
1000 kg

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Hydraulics and Fluid Mechanics in ME
The power produced by the reaction turbine is ________ to the head of water.

4th power
None of these
Directly proportional
Inversely proportional

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