If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.

Question: Discharge of a centrifugal pump is
[A].

directly proportional to diameter of its impeller

[B].

inversely proportional to diameter of its impeller

[C].

directly proportional to (diameter)2 of its impeller

[D].

inversely proportional to (diameter)2 of its impeller

Answer: Option C

Explanation:

Discharge of a centrifugal pump is directly proportional to (Diameter)^2 of its impeller.

Head of a centrifugal pump is directly proportional to (Diameter)^2 of its impeller.

Power Developed of a centrifugal pump is directly proportional to (Diameter)^4 of its impeller.