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Fluid Mechanics

Fluid Mechanics
For the transfer of solution of thick slurry, the pump used is a __________ pump.

Reciprocating
Diaphragm
Centrifugal
Gear

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Fluid Mechanics
The temperature in isentropic flow

Does not depend on Mach number
None of these
Depends on Mach number only
Cannot drop and then increase again downstream

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Fluid Mechanics
The variable required to be known in correlations used for estimating the horse power of a centrifugal gas compressor and hence its cost are P. Inlet pressure Q. Compressor rpm R. Delivery pressure S. Volumetric flow rate at inlet.

P, Q and R
P, Rand S
P and R
R and S

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Fluid Mechanics
Drag force acting on a body does not depend upon the

Density of the body
Density of the fluid
Velocity of the body
Projected area of the body

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Fluid Mechanics
Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury)

D
Σ
1/d
L/σ

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Fluid Mechanics
Medium viscosity lubricating oil can be most ideally pumped by a __________ pump.

Centrifugal
Vane
Piston
Plunger

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