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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

Same as
Less than
More than
None of these

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Hydraulics and Fluid Mechanics in ME
The runaway speed of a hydraulic turbine is the speed

At full load
At which there will be no damage to the runner
At which the turbine will run freely without load
Corresponding to maximum overload permissible

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Hydraulics and Fluid Mechanics in ME
The highest efficiency is obtained with a channel of __________ section.

Circular
Square
Rectangular
Trapezoidal

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Hydraulics and Fluid Mechanics in ME
A differential manometer is used to measure

Difference of pressures between two points in a pipe
Pressure in Venturimeter
Pressure in pipes and channels
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

10 kg
100 kg
1 kg
1000 kg

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When its e.g. is below its center of buoyancy
When the metacentre is above e.g.
When its meatcentric height is zero
Metacentre has nothing to do with position of e.g. for determining stability

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