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Fluid Mechanics

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?

1.5
2
0.5
1

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Fluid Mechanics
Unit of mass velocity is

Kg/m²
Kg/m³. hr
Kg/m². hr
Kg/hr

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Fluid Mechanics
Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around

2000
1000
10
100

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Fluid Mechanics
Bernoull's equation does not apply to the functioning of a/an

None of these
Pitot tube
Orificem
Venturimeter

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Fluid Mechanics
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

Time taken to close the valve
Fluid velocity in the pipe
All of these
Pipe length

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Fluid Mechanics
The terminal velocity of a small sphere settling in a viscous fluid varies as the

First power of its dimeter
Inverse of the fluid viscosity
Inverse square of the diameter
Square of the difference in specific weights of solid & fluid

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MORE MCQ ON Fluid Mechanics

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