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 1 of 5.
Samuel said:
1 year ago
I think, here It should be Discharge Head.
And accordingly, option C would be correct.
And accordingly, option C would be correct.
DebashisD said:
2 years ago
Discharge = Q * D * N.
(1)
Shaik Murtuza said:
3 years ago
Option A is the correct answer.
(1)
Hrushi Nikam said:
4 years ago
When we calculate for specific speed we take the assumption of B being proportional to Diameter. So, option C is correct.
Fouziahussain said:
4 years ago
Q=(pi)DbV.
D=Diameter of impeller.
B =Width.
V= Velocity of flow.
D=Diameter of impeller.
B =Width.
V= Velocity of flow.
Prithvi singh said:
4 years ago
Q is directly proportional to D^3.
(2)
Engr Aamir said:
4 years ago
If Q=Av then Q is directly or inversely proportional?
Biswajit Das said:
4 years ago
Option C is correct.
That Q= π D b Vf.
Anyhow Vf is related to V and V is related to u and u =π D N /60.
So, Q is directly proportional to D^2.
That Q= π D b Vf.
Anyhow Vf is related to V and V is related to u and u =π D N /60.
So, Q is directly proportional to D^2.
(1)
Sekhar mullapudi said:
5 years ago
The discharge flow rate is directly proportional to its diameter.
But here the question is an only discharge of centrifugal pump; So the answer is "directly proportional to the square of the diameter".
So, the correct option C is correct.
But here the question is an only discharge of centrifugal pump; So the answer is "directly proportional to the square of the diameter".
So, the correct option C is correct.
Utsav said:
5 years ago
No, the Discharge of a centrifugal pump is Directly proportional to Impeller diameter.
You can refer to below-given affinity laws.
Q1/Q2 = D1/D2.
H1/H2 = (D1/D2)^2,
P1/P2 = (D1/D2)^3.
Q Indicates Flow that is discharged,
H Indicates Head,
P Indicates Power.
You can refer to below-given affinity laws.
Q1/Q2 = D1/D2.
H1/H2 = (D1/D2)^2,
P1/P2 = (D1/D2)^3.
Q Indicates Flow that is discharged,
H Indicates Head,
P Indicates Power.
(1)
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