701Mechanical EngineeringMedium
Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The minimum value occurs in the region of________?
AUnpredictable
BLean mixture
CChemically correct fuel air ratio
DRich mixture
Correct answer
C. Chemically correct fuel air ratio
Explanation
The correct answer is Chemically correct fuel air ratio.