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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 15
(D/2d) + 5
(D/2d) + 10
(D/2d) + 20

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Discharge and power developed
Speed, power developed and head of water
Speed and head of water
Speed and power developed

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Hydraulics and Fluid Mechanics in ME
The angle of contact in case of a liquid depends upon

any one of the above
both of die above
the material which exists above the free surface of the liquid
the nature of the liquid and the solid

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When its e.g. is below its center of buoyancy
When the metacentre is above e.g.
Metacentre has nothing to do with position of e.g. for determining stability
When its meatcentric height is zero

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

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

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

Two
Three
Four
One

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