A typical petrol engine may harness up to ____________ of the energy contained in the fuel supplied.

A typical petrol engine may harness up to ____________ of the energy c

1.	A typical petrol engine may harness up to ____________ of the energy contained in the fuel supplied.
A.	20%
B.	30%
C.	40%
D.	none of the mentioned
Answer» C. 40%

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