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Fluid Mechanics

Fluid Mechanics
Plunger pumps are used for

Slurries
Viscous mass
None of these
Higher pressure

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Fluid Mechanics
In frictional fluid flow, the quantity, P/ρ + V²/2gc + gz/gc, is

Increased in the direction of flow
Constant along a streamline
None of these
Not constant along a streamline

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Fluid Mechanics
Foot valves are provided in the suction line of a centrifugal pump to

Control the liquid discharge
Remove the contaminant present in the liquid
Avoid priming, every time we start the pump
Minimise the fluctuation in discharge

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Fluid Mechanics
The most economical flow control valve for use with large diameter pipes is a

None of these
Butterfly valve
Needle valve
Globe valve

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Fluid Mechanics
The ratio of actual discharge to theoretical discharge through an orifice is equal to

Cd/Cv
Cv . Cd
Cc . Cv
Cc . Cd

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

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

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