Mechanical Engineering - Hydraulic Machines - Discussion

Discussion Forum : Hydraulic Machines - Section 1 (Q.No. 6)
6.
Discharge of a centrifugal pump is
directly proportional to diameter of its impeller
inversely proportional to diameter of its impeller
directly proportional to (diameter)2 of its impeller
inversely proportional to (diameter)2 of its impeller
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:
50 comments Page 3 of 5.

Kartheek said:   8 years ago
dicharge Q = pav, a= πd^2/4 so q is directly praporional to squre of diameter.

Radhika said:   1 decade ago
Directly proportional to diameter of its impeller. A is the correct answer.

Pal said:   7 years ago
Q= π*D*v*b and v=πdN/60.

So the right answer is proportional to d^2.

HEMANT said:   9 years ago
We know that Q = pi * d * b * vf.

So that is directly proportional to d.

Suresh Shinde said:   8 years ago
Q/(N*D^3).

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

Fouziahussain said:   6 years ago
Q=(pi)DbV.

D=Diameter of impeller.
B =Width.
V= Velocity of flow.

Saboor khan kamali said:   7 years ago
It is directly proportional to the square of the diameter.

Prem vilas hatagale said:   7 months ago
It's directly proportional to (diameter)2 of its impeller.

Faisal mumtaz said:   9 years ago
Directly proportional to diameter so, option A is correct.

Pabitra said:   8 years ago
Q= 3.14 d b v = d^3 n so the correct answer will be d^3.


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