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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The width of the bucket for a Pelton wheel is generally ________ the diameter of jet.

Four times
Three times
Five times
Double

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Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

250 to 300
10 to 100
80 to 200
0 to 4.5

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump casing, the flow of water leaving the

Radial
Centrifugal
Vortex
Axial

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

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

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Hydraulics and Fluid Mechanics in ME
Motion of a liquid in a volute casing of a centrifugal pump is an example of

Forced spiral vortex flow
Radial
Rotational flow
Spiral vortex flow

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

decrease in viscosity of gas
increase in viscosity of gas
increase in viscosity of liquid
decrease in viscosity of liquid

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