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Hydraulics and Fluid Mechanics in ME

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

0.848
0.392
0.688
0.492

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to

Archimedes’ principle
Bernoulli’s theorem
Equilibrium of a floating body
Buoyancy

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Hydraulics and Fluid Mechanics in ME
An average value of coefficient of velocity is

0.97
0.84
0.76
0.62

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Hydraulics and Fluid Mechanics in ME
The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)

2gH
√(2gh)
H × √(2g)
2g × √H

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Hydraulics and Fluid Mechanics in ME
The property of a fluid which enables it to resist tensile stress is known as

cohesion
surface tension
adhesion
compressibility

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Hydraulics and Fluid Mechanics in ME
Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

Inversely proportional to N²
Directly proportional to N
Directly proportional to N²
Inversely proportional to N

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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