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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the Mach number is between ___ the flow is called super-sonic flow.

1 and 6
4 and 6
2.5 and 4
1 and 2.5

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Hydraulics and Fluid Mechanics in ME
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as

uniform flow
one dimensional flow
steady flow
turbulent flow

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

Head of water (h)
h/2
V/T
h²

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is

0.26
0.56
0.36
0.46

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Hydraulics and Fluid Mechanics in ME
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be

4 m of water column
3 metres of water column
2 metres of water column
3.5 metres of water column

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Hydraulics and Fluid Mechanics in ME
The Thomson's turbine is _________ reaction turbine.

An inward flow
An axial flow
An outward flow
A mixed flow

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