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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the boilers?

Jet pump
Centrifugal pump
Airlift pump
Reciprocating pump

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Hydraulics and Fluid Mechanics in ME
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

Two-third
Equal to
One-third
Three-fourth

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is equal to

density/dynamic viscosity
1/dynamicviscosity x density
dynamicviscosity x density
dynamic viscosity/density

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

Less than
More than
None of these
Same as

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Hydraulics and Fluid Mechanics in ME
Piezometer is used to measure

Difference of pressure between two points
Pressure in pipe, channels etc
Atmospheric pressure
Very low pressures

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Hydraulics and Fluid Mechanics in ME
Kinematic similarity is said to exist between the model and the prototype, if both of them

Have identical velocities
Are equal in size and shape
Have identical forces
Are identical in shape, but differ only in size

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