Civil UPSC ESE Exam Solution 2021
UPSC ESE Exam Solution 2021 for Civil Engineering UPSC ESE 2021 GS Paper 1 download exam paper from telegram https://telegram.me/civil_experiences
A centrifugal pump delivers water against a net head of 14.5 meer a design speed of 1000 RPM. The vanes are curved back to an angle of 30° with the periphery. The impeller diameter is 300mm and the outlet width is 50mm. What is the tangential velocity of the impeller at the outlet?
ANSWER= [A] 15.7 m/s
Detailed Solution for Civil Engineering Exam
Centrifugal Pump
Given Data
Hm = 14.5 m
N = 1000 rpm
β2 = 30°
D2 = 300 mm
B2 = 50 mm
u2 = ?
The tangential velocity of the impeller at an outlet (u2)
u2 = (ΠD2N/60)
u2 = (Π × 300 × 10-3× 1000)/60
u2 = 15.7 m/s
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