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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.

Less than
None of these
Same as
More than

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

rotameter
Venturimeter
hot wire anemometer
pitot tube

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Hydraulics and Fluid Mechanics in ME
Metacentric height for small values of angle of heel is the distance between the

centre of gravity and metacentre
centre of gravity and centre of buoy-ancy
centre of buoyancy and metacentre
free surface and centre of buoyancy

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed, power developed and head of water
Speed and power developed
Discharge and power developed
Speed and head of water

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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
51 cm
50 cm
52.2 cm

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

decrease in viscosity of gas
increase in viscosity of liquid
increase in viscosity of gas
decrease in viscosity of liquid

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