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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

102 watts
735 watts
75 watts
550 watts

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Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is

[wa (V - v)²]/2g
[wa (V - v)]/2g
[wa (V - v)]/g
[wa (V - v²)]/g

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Hydraulics and Fluid Mechanics in ME
Practical fluids

are viscous
possess surface tension
are compressible
possess all the above properties

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Hydraulics and Fluid Mechanics in ME
A metal with specific gravity of o floating in a fluid of same specific gravity a will

partly immersed
float over fluid
be fully immersed with top surface at fluid surface
sink to bottom

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Minus
Divide
None of these
Plus

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Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?

0.4
0.5
0.515
0.5

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