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Fluid Mechanics

Fluid Mechanics
The dimension of kinematic viscosity is

ML⁻²T⁻¹
L²T⁻¹
ML⁻²T⁻²
None of these

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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?

2
1.5
1
0.5

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Fluid Mechanics
The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid.

Newtonion
None of these
Bingham
Perfect

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Fluid Mechanics
Which of the following produces maximum pressure difference for transportation of gases?

Blowers
Compressors
Vaccum pumps
Fans

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Fluid Mechanics
Cavitation in a centrifugal pump can be avoided by keeping the

Inlet pressure low
Outlet pressure high
Outlet pressure low
Inlet pressure high

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Fluid Mechanics
Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the

All of these
Back flow of fluid in the event of stoppage of pump
Flow of liquid during operation of the pump
Discharge pressure

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