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Fluid Mechanics

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

None of these
Axial flow
Centrifugal
Mixed flow

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Fluid Mechanics
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?

Turbulent
Non-uniform
Rotational
Unsteady

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Fluid Mechanics
Cd is always __________ Cc.

Less than
Either more or less than
Equal to
Greater than

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Fluid Mechanics
Foot valves are provided in the suction line of a centrifugal pump to

Avoid priming, every time we start the pump
Remove the contaminant present in the liquid
Minimise the fluctuation in discharge
Control the liquid discharge

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Fluid Mechanics
Volute type of casing is provided in a centrifugal pump to

Reduce the discharge fluctuation
Convert pressure head to velocity head
Convert velocity head to pressure head
Increase the discharge

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Fluid Mechanics
As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity)

1/μ
1/μ²
μ
μ²

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