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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Hydraulic coupling
Jet pump
Hydraulic press
Air lift pump

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Hydraulics and Fluid Mechanics in ME
The major loss of energy in long pipes is due to

gradual contraction or enlargement
friction
sudden enlargement
sudden contraction

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Hydraulics and Fluid Mechanics in ME
The maximum efficiency of transmission through a pipe is

0.6667
0.5
0.567
0.7666

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Hydraulics and Fluid Mechanics in ME
The speed of a turbine runner is

Inversely proportional to H3/2
Directly proportional to H3/2
Directly proportional to H1/2
Inversely proportional to H1/2

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

pressure, viscous and turbulent
gravity, viscous and turbulent
gravity, pressure and turbulent
gravity, pressure and viscous

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Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

1
43924
2

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