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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H²
P/ √H
P/ H3/2
P/ H

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Hydraulics and Fluid Mechanics in ME
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

ρ/K
K.ρ
K/ρ
None of the listed here

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies

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

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Hydraulics and Fluid Mechanics in ME
In a venturi-flume, the flow takes place at

None of these
Gauge pressure
Atmospheric pressure
Absolute pressure

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Hydraulics and Fluid Mechanics in ME
Reynold's number is the ratio of inertia force to

Viscous force
Gravity force
Pressure force
Elastic force

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

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

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