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:
50 comments Page 2 of 5.
Muhammad Waqas said:
8 years ago
Q=πDb(V_f).
Where D=Diameter of impeller at inlet,
b=width of impeller at inlet,and
V_f=Velocity of flow at inlet.
Q=πDb(V_f).
Q=πDb(πDN/60).
Hence
Q is directly proportional to square of the diameter.
Where D=Diameter of impeller at inlet,
b=width of impeller at inlet,and
V_f=Velocity of flow at inlet.
Q=πDb(V_f).
Q=πDb(πDN/60).
Hence
Q is directly proportional to square of the diameter.
Kartheek said:
8 years ago
dicharge Q = pav, a= πd^2/4 so q is directly praporional to squre of diameter.
Ali said:
8 years ago
Answer C is correct.
Bapi said:
8 years ago
Q/{N(D^3)}=constant.
So the correct answer is Q is directly proportional to cube of the diameter(D) of the impeller.
So the correct answer is Q is directly proportional to cube of the diameter(D) of the impeller.
Saboor khan kamali said:
7 years ago
It is directly proportional to the square of the diameter.
Debashis said:
7 years ago
Option C is correct.
Debashis said:
7 years ago
Yes, option: C is correct.
Pal said:
7 years ago
Q= π*D*v*b and v=πdN/60.
So the right answer is proportional to d^2.
So the right answer is proportional to d^2.
Pabitra said:
8 years ago
It should be diameter cube.
Sekhar mullapudi said:
7 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.
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