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Fluid Mechanics

Fluid Mechanics
Plunger pumps are used for

Higher pressure
Viscous mass
None of these
Slurries

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Fluid Mechanics
The Mach number for hypersonic flow of compressible fluid is

1
> 4
> 1
< 2

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Fluid Mechanics
Lower BWG means __________ of the tube.

Lower cross-section
Lower thickness
Inner diameter
Outer diameter

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Fluid Mechanics
The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.

Prandtl mixing
None of these
Transition
Equivalent

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Fluid Mechanics
Which of the following is the most common pump for pumping either raw sewage or sludge?

Reciprocating pump
Gear pump
Electromagnetic pump
Centrifugal pump

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Fluid Mechanics
For an unstable equilibrium of a floating body (where, M = metacentre.)

M is above G
None of these
M is below G
M & G coincide

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