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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

Normal speed
Specific speed
Unit speed
None of these

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Hydraulics and Fluid Mechanics in ME
The force of buoyancy is always __________ the weight of the liquid displaced by the body.

More than
Less than
None of these
Equal to

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is suitable for small discharge and high heads?

Axial flow pump
Centrifugal pump
Reciprocating pump
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

micro-manometer with water
U-tube with water
U-tube with mercury
inclined U-tube

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the pressure varies

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

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

friction loss and flow
length and diameter
flow and length
friction factor and diameter

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