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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

52 cm
52.2 cm
51 cm
50 cm

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Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Highly turbulent flow
Smooth and streamline flow
Steady flow
Laminar flow

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Hydraulics and Fluid Mechanics in ME
For a body floating in a liquid the normal pressure exerted by the liquid acts at

metacentre
e.g. of the body
bottom surface of the body
all points on the surface of the body

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is generally used to pump highly viscous fluid?

Centrifugal pump
Reciprocating pump
Air lift pump
Screw pump

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is less than the critical depth, the flow is called

Tranquil flow
Torrential flow
Turbulent flow
Critical flow

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Hydraulics and Fluid Mechanics in ME
The process of diffusion of one liquid into the other through a semi-permeable membrane is called

surface tension
osmosis
cohesion
viscosity

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