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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H5/2
Cd × a × √(2gH)
Cd × a × √(2g) × H2

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Hydraulics and Fluid Mechanics in ME
The flow in which each liquid particle has a definite path and their paths do not cross each other is called

turbulent flow
one dimensional flow
streamline flow
uniform flow

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Four times
Sixteen times
Double
Eight times

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is generally used to pump highly viscous fluid?

Air lift pump
Screw pump
Centrifugal pump
Reciprocating pump

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

decrease in viscosity of gas
decrease in viscosity of liquid
increase in viscosity of liquid
increase in viscosity of gas

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Hydraulics and Fluid Mechanics in ME
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

(8/15) Cd. 2g. H
(8/15) Cd. 2g. H3/2
(8/15) Cd. 2g. H²
(8/15) Cd. 2g. H5/2

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