The efficiency of a chopper can be expected in the range:

1.	The efficiency of a chopper can be expected in the range:
A.	50 to 55 per cent
B.	65 to 72 per cent
C.	82 to 87 per cent
D.	92 to 99 per cent
Answer» E.

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The efficiency of a chopper can be expected in the range:

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