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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Hydrometer is used to determine

relative humidity
specific gravity of liquids
specific gravity of solids
specific gravity of gases

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and inertial force
viscous force and buoyancy force
pressure force and inertial force
inertial force and gravity

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Hydraulics and Fluid Mechanics in ME
The optimum value of vane exit angle for a centrifugal pump impeller is

50-60°
20-25°
30-40°
10-15°

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Hydraulics and Fluid Mechanics in ME
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

less
equal
more
less at low temperature and more at high temperature

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Hydraulics and Fluid Mechanics in ME
The Reynold's number of a ship is __________ to its velocity and length.

Inversely proportional
Directly proportional
Square root of velocity
None of these

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Hydraulics and Fluid Mechanics in ME
Which of the following is the unit of kinematic viscosity

stoke
faraday
pascal
poise

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