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Fluid Mechanics

Fluid Mechanics
Slurries can be most conveniently pumped by a __________ pump.

Reciprocating
Screw
Centrifugal
Gear

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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.

None of these
Transition
Prandtl mixing
Equivalent

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Fluid Mechanics
In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)

Vavg
1.5 Vavg
1.8 Vavg
1.2 Vavg

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Fluid Mechanics
For laminar flow through a closed conduit

Vmax = 0.5Vav
Vmax = 2Vav
Vmax = Vav
Vmax = 1.5Vav

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Fluid Mechanics
Which of the following produces maximum pressure difference for transportation of gases?

Vaccum pumps
Compressors
Fans
Blowers

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Fluid Mechanics
With increase in molecular weight of the gas, the head developed by a centrifugal compressor will

Unpredictable
Decrease
Remain same
Increase

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MORE MCQ ON Fluid Mechanics

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