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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is

80 r.p.m.
40 r.p.m.
20 r.p.m.
10 r.p.m.

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

momentum
energy
work
mass

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

More than twice
Less than twice
Less than three times
More than three times

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Hydraulics and Fluid Mechanics in ME
Center of pressure on an inclined plane is

At the Centroid
Above the Centroid
Below the Centroid
At metacentre

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.492
0.848
0.688
0.392

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Hydraulics and Fluid Mechanics in ME
Choose the wrong statement. Alcohol is used in manometer, because

Its density is less
Its vapour pressure is low
It provides longer length for a given pressure difference
It provides suitable meniscus for the inclined tube

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