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Fluid Mechanics

Fluid Mechanics
__________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm².

Plunger
Piston
Vane
Centrifugal

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Fluid Mechanics
Plunger pumps are used for

None of these
Viscous mass
Slurries
Higher pressure

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Fluid Mechanics
With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss

Increases
Decreases
Remains constant
Increases linearly

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Fluid Mechanics
Pressure gradient in the pipe flow is influenced by the

Velocity of the fluid
Diameter of pipe
Density & viscosity of the fluid
All of these

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Fluid Mechanics
A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.

11 m
10 m
20 m
12 m

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Fluid Mechanics
Potential flow is the flow of

Compressible fluids with no shear
Compressible fluids with shear
Incompressible fluids with shear
Incompressible fluids with no shear

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