In alcoholic fuels the knock is reduced at …….. mixtures.
A. rich
B. lean
C. equal
D. none of the mentioned
Answer:A
In alcoholic fuels the knock is reduced at …….. mixtures.
A. rich B. lean C. equal D. none of the mentioned
Explanation: In alcoholic fuels the knock is reduced at rich mixtures because of the cooling effect of high latent heat of the fuel.