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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

Same as
None of these
More than
Less than

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Hydraulics and Fluid Mechanics in ME
The top of the weir over which the water flows is known as

Sill or crest
Nappe or vein
Orifice
None of these

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Hydraulics and Fluid Mechanics in ME
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately

5 mm
20 mm
10 mm
30 mm

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Guide blade
Inlet of draft rube
Blade inlet
Penstock

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for the fans having constant wheel diameters, the power demand varies

Square root of fan speed
Cube of fan speed
Square of fan speed
Directly as fan speed

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

atmospheric pressure
very low pressure
pressure in pipes, channels etc
difference of pressure between two points

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