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Fluid Mechanics

Fluid Mechanics
A piezometer opening measures the __________ fluid pressure.

Total
Static
Dynamic
Undisturbed

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Fluid Mechanics
For water, when the pressure increases, the viscosity

Decreases
Remains constant
Also increases
First decreases, and then increases

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Fluid Mechanics
Boundary layer separation occurs when the

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

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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

4.4
0.44
44
0.044

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Fluid Mechanics
In laminar flow through a round tube, the discharge varies

As the square of the radius
Inversely as the viscosity
Inversely as the pressure drop
Linearly as the viscosity

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Fluid Mechanics
Steady uniform flow is represented by flow through a/an

Long pipe at constant rate
Expanding tube at constant rate
Long pipe at decreasing rate
None of these

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