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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

Double
Equal to
1.8 times
1.2 times

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Hydraulics and Fluid Mechanics in ME
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is

1
7
6
5

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Hydraulics and Fluid Mechanics in ME
Liquids

Are not affected by change in pressure and temperature
Occupy definite volume
Cannot be compressed
None of the listed here

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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

pitot tube
hot wire anemometer
Venturimeter
rotameter

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

Elastic force
Gravity force
Surface tension force
Viscous force

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Hydraulics and Fluid Mechanics in ME
A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

28.9 kN
2.89 kN
8.29 kN
9.28 kN

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