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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
Plunger pumps are used for

Viscous mass
Slurries
Higher pressure
None of these

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Fluid Mechanics
The __________ pressure is measured by a static tube.

Dynamic
Total
None of these
Static

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Fluid Mechanics
Which of the following exemplifies a three dimensional fluid flow ?

Fluid flow at the inlet to a nozzle
Viscous fluid flow between converging plates
None of these
Fluid flow between parallel plates

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Fluid Mechanics
What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air.

0.01πgH/8
0.04πgH/3
0.01πgH/4
4πg/3

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Fluid Mechanics
As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1

Decreases linearly with V
Increases linearly with V
Decreases as V²
None of these

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