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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Reynold's number
Mach number
Froude's number
Weber's number

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Hydraulics and Fluid Mechanics in ME
The losses are more in

laminar flow
turbulent flow
transition flow
critical flow

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Hydraulics and Fluid Mechanics in ME
If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in

Neutral equilibrium
None of these
Unstable equilibrium
Stable equilibrium

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

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

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

wH/2
wH2/2
wH
wH2/3

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Hydraulics and Fluid Mechanics in ME
Which type of the pump is different from others in the same group?

Plunger pump
Cam and piston pump
Gear pump
Screw pump

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