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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

1/4 to 1/3
1/3 to 1/2
1/8 to 1/4
1/16 to 1/8

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Hydraulics and Fluid Mechanics in ME
A hydraulic coupling belongs to the category of

Power developing machines
Energy generating machines
Energy transfer machines
Power absorbing machines

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Hydraulics and Fluid Mechanics in ME
Low specific speed of turbine implies it is

Any one of the above
Impulse turbine
Propeller turbine
Francis turbine

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the gases with rise in temperature

remains unaffected
decreases
unpredictable
increases

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

1.417 H5/2
4.171 H5/2
0.417 H5/2
7.141 H5/2

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Hydraulics and Fluid Mechanics in ME
The viscosity of water at 20°C is

One poise
One stoke
One centistoke
One centipoise

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