# Mechanical Engineering - Hydraulic Machines - Discussion

Discussion Forum : Hydraulic Machines - Section 1 (Q.No. 6)

6.

Discharge of a centrifugal pump is

Answer: Option

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.

Discussion:

49 comments Page 5 of 5.
Patel jigar k said:
7 years ago

The correct answer is A,

q = d.

h =d^2.

p = d^3.

q = d.

h =d^2.

p = d^3.

Manikanta said:
7 years ago

Q = A.V.

A = π/4D2.

Q is directly proportional to d2.

A = π/4D2.

Q is directly proportional to d2.

NabaJyoti said:
7 years ago

It is Directly proportional to D.

Md mina, said:
7 years ago

Yes, A is correct.

Daya said:
7 years ago

I think option A is right.

Venkat said:
7 years ago

The Answer is B.

Discharge of centrifugal pump is directly proportional to its (dia)^2.

Q = A * V,

Here A = π * D^2/4.

Discharge of centrifugal pump is directly proportional to its (dia)^2.

Q = A * V,

Here A = π * D^2/4.

Shiva said:
7 years ago

As Q is directly proportional to B and D and B (width) is proportional to D. Therefore Q is directly proportional to D^2.

Suresh Shinde said:
7 years ago

Q/(N*D^3).

So, the correct answer is directly proportional to D^3.

So, the correct answer is directly proportional to D^3.

Rishabh Singh said:
7 years ago

Affinity Law of a pump- Q is proportional to D.

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