Erosion and pits formation on the impeller of a centrifugal pump may be due to________________?

Related Mcqs:

Pascal law is not applicable for a/an ________________________ fluid?

A. Accelerating frictionless B. Static C. Uniformly moving D. None of these...

Applicability of Bernoulli’s equation is limited to a/an _____________ fluid, that does not exchange shaft work with the surroundings?

A. Incompressible B. Non-viscous C. Both A. and B. D. Neither A. nor B....

Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement ?

A. f1 = f2 B. f1 < f2 C. f1 > f2 D. Data not sufficient to relate f1 & f2...

In which of the following cases, it is possible for flow to occur from low pressure to high pressure ?

A. Flow of liquid upward in a vertical pipe B. Flow through a converging section C. Flow of air downward in a pipe D. Impossible in a constant cross-section conduit...

Unsteady non-uniform flow is represented by flow through a/an_________________?

A. Long pipe at constant rate B. Long pipe at decreasing rate C. Expanding tube at increasing rate D. Expanding tube at constant rate...