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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Casting of a centrifugal pump is designed so as to minimize

Static head
Friction loss
Loss of kinetic energy
Cavitations

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Hydraulics and Fluid Mechanics in ME
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Half the depth
Twice the breadth
Half the breadth
Twice the depth

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Hydraulics and Fluid Mechanics in ME
The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)

(p/W) × (A/a)
(W/p) × (a/A)
(p/W) × (a/A)
(W/p) × (A/a)

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Hydraulics and Fluid Mechanics in ME
Differential monometer is used to measure

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

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Hydraulics and Fluid Mechanics in ME
A pitot tube is used to measure the

Pressure difference between two points in a pipe
Discharge through a pipe
Velocity of flow at the required point in a pipe
Total pressure of liquid flowing in a pipe

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Hydraulics and Fluid Mechanics in ME
Bernoulli's equation is applied to

All of the listed here
Orifice meter
Pitot tube
Venturimeter

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