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 maximum value occurs in the region of ____________
A. lean mixture
B. chemically correct mixture
C. rich mixture
D. none of the mentioned
Answer:B
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 maximum value occurs in the region of ____________
A. lean mixture B. chemically correct mixture C. rich mixture D. none of the mentioned