In the following diagram, for axial flow compressors, surging is likel

1.	In the following diagram, for axial flow compressors, surging is likely to occur in
A.	4th zone
B.	2nd zone
C.	1st zone
D.	3rd zone
Answer» D. 3rd zone

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In the following diagram, for axial flow compressors, surging is likely to occur in

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