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Fluid Mechanics

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
A centrifugal pump is called a turbine pump, if it is having a

Rotating vaned volute
Vaned diffusion casing
Turbine type impeller
None of these

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Fluid Mechanics
Power number is the ratio of

Inertial stress to drag stress
Inertial stress to gravitational stress
Gravitational stress to drag stress
Drag stress to inertial stress

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

Vane
Piston
Centrifugal
Plunger

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Fluid Mechanics
In an incompressible flow of fluid, the fluid

Is frictionless
Density does not change with pressure & temperature
Compressibility is greater than zero
Temperature remains constant

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Fluid Mechanics
__________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm².

Vane
Piston
Plunger
Centrifugal

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