The air fuel ratio for idling speed of an automobile petrol engine is

1.	The air fuel ratio for idling speed of an automobile petrol engine is closer to:
A.	0.417361111111111
B.	0.625694444444444
C.	0.709027777777778
D.	0.875694444444444
Answer» B. 0.625694444444444

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The air fuel ratio for idling speed of an automobile petrol engine is closer to:

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