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

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Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?

The metal piece will simply float over the mercury
Whole of the metal piece will be immersed with its top surface just at mercury level
The metal piece will be immersed in mercury by half
Metal piece will sink to the bottom

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure

Increases linearly as its radial distance
Varies as the square of the radial distance
Decreases as the square of the radial distance
Increases as the square of the radial distance

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