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Fluid Mechanics

Fluid Mechanics
Momentum transfer in laminar flow of fluids results due to the

Density
None of these
Viscosity
Velocity gradient

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

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

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

Expanding tube at increasing rate
Long pipe at decreasing rate
Expanding tube at constant rate
Long pipe at constant rate

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

None of these
Centrifugal
Mixed flow
Axial flow

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Fluid Mechanics
Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury)

1/d
Σ
L/σ
D

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

Vane
Plunger
Centrifugal
Piston

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