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Hydraulics and Fluid Mechanics in ME

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

Centrifugal pump
Mixed flow pump
Reciprocating pump
Axial flow pump

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

ρ ω2 r2/4
2ρ ω2 r2
ρ ω2 r2/2
ρ ω2 r2

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

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

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Compressibility of the liquid
Pressure with which the liquid is displaced
Viscosity of the liquid
Weight of the liquid displaced

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is

18,000 kg
27,000 kg
13,500 kg
9,000 kg

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Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Equal to
Double
Three to four times
Five to six times

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