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Fluid Mechanics

Fluid Mechanics
The ratio of inertial forces to elastic forces is called the __________ number.

Euler
Weber
Mach
Reynolds

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Fluid Mechanics
Very small pressure difference (< 5 mm water coloumn) can be most conveniently measured by a/an __________ manometer.

Inclined tube water
U-tube water
U-tube mercury
Inclined tube mercury

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Fluid Mechanics
Multistage compressors are used in industry, because they

Resemble closely to isothermal compression
Reduce the cost of compressor
Are easy to control
Reduce the size requirement

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Fluid Mechanics
Boundary layer separation occurs when the

Pressure reaches a minimum
Velocity of sound is reached
Valve is closed in a pipeline
Cross-section of the channel is reduced

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Fluid Mechanics
In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is

0.044
44
4.4
0.44

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Fluid Mechanics
Cp/Cv is termed as

Mach number
Prandtl number
Weber number
Adiabatic constant

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MORE MCQ ON Fluid Mechanics

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