1000+ Hydraulics and Fluid Mechanics Multiple Choice Questions - 1

Question: 1

Critical speed of turbine is

(A) the speed at which the number of natural vibrations or natural frequency equals the number of revolutions per minute

(B) the speed at which shaft will break

(C) same as runaway speed

(D) same as maximum operating speed

Question: 2

Which fluid is the heaviest?

(A) air

(B) carbon tetrachloride

(C) castor oil

(D) glycerine

Question: 3

World's largest capacity hydro-electric generating plant is located in

(A) France

(B) Germany

(C) USSR

(D) USA

Question: 4

The magnitude of water hammer depends on

(A) the elastic properties of the liquid flowing through the pipe

(B) the length of pipeline

(C) the speed at which the value is closed

(D) all of the above

Question: 5

A simple pitot tube is used to measure

(A) the dynamic pressure

(B) the total pressure

(C) the velocity in a flowing stream

(D) the pressure in a static fluid