1.

How is the variation of air velocity while passing through impeller followed by diffuser in centrifugal compressor? 

A. Air velocity goes no increasing in impeller followed by diffuser
B. Air velocity goes no decreasing in impeller followed by diffuser
C. Air velocity increases in impeller and then decreases in diffuser
D. Air velocity decreases in impeller and then increases in diffuser
Answer» D. Air velocity decreases in impeller and then increases in diffuser


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