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Fluid Mechanics

Fluid Mechanics
A hydraulic ram acts as a/an __________ pump.

Parallel cylinder
Impulse
Centrifugal
Reciprocating

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Fluid Mechanics
Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an

Pitot tube
Orificemeter
Venturimeter
Rotameter

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Fluid Mechanics
In case of supersonic flow of a fluid through pipeline, the 'Mach number' is

< 1
> 1
1

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Fluid Mechanics
While starting an axial flow pump, its delivery valve should be kept

None of these
Closed
Open
Either open or closed

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Fluid Mechanics
The hydrodynamic and thermal boundary layers will merge, when

Nusselt number tends to infinity
Prandtl number is one
Archimedes number is greater than 10000
Schmidt number tends to infinity

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Fluid Mechanics
Net positive suction head (NPSH) of a centrifugal pump must be

Less than barometric pressure
Equal to the vapour pressure of the liquid
Less than the vapour pressure of the liquid
Greater than the vapour pressure of the liquid

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MORE MCQ ON Fluid Mechanics

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