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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow in which __________ force is dominating over the viscosity is called turbulent flow.

Viscous
Surface tension
Inertia
Elastic

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Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is

(waV/2g) × sin θ
(waV²/2g) × sin 2θ
(waV²/g) × sin θ
(waV/g) × sin θ

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Hydraulics and Fluid Mechanics in ME
Pascal-second is the unit of

kinematic viscosity
dynamic viscosity
surface tension
pressure

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Hydraulics and Fluid Mechanics in ME
The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

wH
wH/2
wH2/2
wH2/4

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine with increase in unit speed

Decreases
Remain unaffected
First increases and then decreases
Increases

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Hydraulics and Fluid Mechanics in ME
The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced.

Less than
Equal to
None of these
More than

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