Fluid Mechanics MCQs

Power required by a centrifugal pump is proportional to (where, D = diameter, N = r.p.m)

The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which "sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis". The centre of pressure of a rectangular surface (of width 'w') immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid)

A special type of liquid transporting device is the diffuser pump, in which __________ are minimised.

A pipe of I.D. 4 m is bifurcated into two pipes of I.D. 2 m each. If the average velocity of water flowing through the main pipe is 5 m/sec, the average velocity through the bifurcated pipes is

Weber number is the ratio of inertial force to __________ force.

One stoke (unit of kinematic viscosity) is equivalent to

When the water is warm, the height to which it can be lifted by a pump

For a particle settling in water at its terminal settling velocity, which of the following is true?

Pick out the correct statement.