The magnitude of water hammer depends upon the - Hydraulics and Fluid Mechanics Quiz

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

The magnitude of water hammer depends upon the

speed at which the valve is closed

elastic properties of the pipe material

elastic properties of the liquid flowing through the pipe

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

Cohesion

Correct Answer : Surface tension

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

Kaplan turbine

Pelton wheel

Francis turbine

None of the above

Correct Answer : Francis turbine

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

Specific mass

Specific gravity

Specific weight

Specific density

Correct Answer : Specific gravity