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Fluid Mechanics

Fluid Mechanics
Unit of mass velocity is

Kg/hr
Kg/m³. hr
Kg/m². hr
Kg/m²

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Fluid Mechanics
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

Specific gravity
Electrical conductivity
Electrical resistivity
Thermal conductivity

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Fluid Mechanics
Prandtl mixing length is

Zero at the pipe wall
None of these
Applicable to laminar flow problems
A universal constant

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Fluid Mechanics
A venturimeter can not be used for the direct measurement of

Datum difference in the stretch of pipeflow
Pressure difference in the flow throughpipeline
Friction loss in pipe flow
All of these

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Fluid Mechanics
Purpose of relief valve in a reciprocating pump is to

Protect the pump against developing excessive pressure
Reduce the discharge pressure
Control the rate of discharge
Facilitate unidirectional flow of liquid

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Fluid Mechanics
Plunger pumps are used for

Higher pressure
Viscous mass
None of these
Slurries

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