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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the turbines?

Jet pump
Centrifugal pump
Reciprocating pump
Air lift pump

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure at sea level is

10.3 m of water
760 mm of mercury
All of these
103 kN/m2

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is

80 r.p.m.
10 r.p.m.
20 r.p.m.
40 r.p.m.

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

Unsteady uniform flow
Steady uniform flow
Steady non-uniform flow
Unsteady non-uniform flow

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Hydraulics and Fluid Mechanics in ME
The unit discharge through the turbine is

Q/H3/2
Q/H
Q/H²
Q/√H

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity with increase in pressure

remains constant
decreases
increases first upto certain limit and then decreases
increases

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