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Fluid Mechanics

Fluid Mechanics
Low specific speed of a pump implies that, it is a/an __________ pump.

Axial flow
Mixed flow
Centrifugal
None of these

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Fluid Mechanics
The normal stress is the same in all directions at a point in a fluid, when the fluid is

Having no motion of one fluid layer relative to the other
Non-viscous
Incompressible
Both A and B

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Fluid Mechanics
Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.)

√d
d4/5
d1/3
d2/3

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Fluid Mechanics
The bulk modulus of elasticity of a liquid

Is independent of temperature & pressure
Decreases with pressure
Increases with pressure
Is zero for incompressible liquid

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Fluid Mechanics
The Mach number for hypersonic flow of compressible fluid is

> 1
> 4
1
< 2

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

Mach
Reynold
Froude
Weber

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MORE MCQ ON Fluid Mechanics

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