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Fluid Mechanics

Fluid Mechanics
The speed of sound in an ideal gas varies as the

None of these
Temperature
Density
Pressure

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Fluid Mechanics
The equivalent diameter for flow through a rectangular duct of width B and height H is

4HB/(H + B)
2HB/(H + B)
HB/(H + B)
HB/2(H + B)

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

Plunger
Vane
Piston
Centrifugal

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Fluid Mechanics
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the

Inverse of fluid viscosity
Difference in the densities of the particle & fluid
Square of particle size
All of these

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Fluid Mechanics
The capacity of an accumulator is the maximum

None of these
Liquid which it can store
Discharge which it can deliver
Energy which it can store

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Fluid Mechanics
What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate?

0.5
1
2
1.5

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