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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The pressure of a liquid measured with the help of a Piezometer tube is

Vacuum pressure
Atmospheric pressure
Absolute pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
Centrifugal pump is started with its delivery valve

Kept fully open
Kept fully closed
Irrespective of any position
Kept 50% open

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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)

2g × √H
√(2gh)
H × √(2g)
2gH

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Hydraulics and Fluid Mechanics in ME
The property of fluid by virtue of which it offers resistance to shear is called

adhesion
viscosity
surface tension
cohesion

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

flow and length
friction factor and diameter
length and diameter
friction loss and flow

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel is

Outward flow impulse turbine
Tangential flow impulse turbine
Inward flow impulse turbine
Inward flow reaction turbine

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