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 3 of 5.
Venkat said:
8 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:
8 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:
8 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:
8 years ago
Affinity Law of a pump- Q is proportional to D.
DHIRENDRA KUMAR said:
8 years ago
C is the right answer.
Pabitra said:
8 years ago
Q= 3.14 d b v = d^3 n so the correct answer will be d^3.
Pabitra said:
8 years ago
It should be diameter cube.
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.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers