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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

atmospheric pressure
surface tension forces
viscosity
air resistance

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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

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

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Hydraulic jump
Depth of channel
Velocity of flow in an open channel
Depth of flow in an open channel

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Hydraulics and Fluid Mechanics in ME
The force of buoyancy is always __________ the weight of the liquid displaced by the body.

Less than
None of these
More than
Equal to

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Hydraulics and Fluid Mechanics in ME
The unit of dynamic viscosity in S.I. units is

Poise
N-s/m²
N-m/s²
Stoke

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Hydraulics and Fluid Mechanics in ME
Reynold's number is the ratio of inertia force to

Pressure force
Elastic force
Viscous force
Gravity force

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