The pressure less than atmospheric pressure is known as - Hydraulics and Fluid Mechanics Quiz

Mechanical Engineering : Hydraulics and Fluid Mechanics - Quiz(MCQ)

The pressure less than atmospheric pressure is known as

vacuum pressure

suction pressure

negative gauge pressure

All of the above

Correct Answer : Option (D) : All of the above

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Free surface of a liquid tends to contract to the smallest possible area due to force of

Friction

Surface tension

Viscosity

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Correct Answer : Surface tension

Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?

Kaplan turbine

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None of the above

Correct Answer : Francis turbine

If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

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Specific gravity

Specific weight

Specific density

Correct Answer : Specific gravity