Q194
The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.
A.
Reduced
AnswerB.
Increased
C.
Zero
D.
None of these
Answer: Option A
Solution
Answer: Option A
Solution:
The process, which causes the air to enter the impeller blades of a centrifugal compressor at reduced velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.