Question

Which of the following statements is not correct with respect to alcohols as alternate fuel?

(a) Anti-knock characteristics of alcohol are poor

(b) Alcohol contains about half the heat energy of gasoline/liter

(c) Alcohol does not vaporize as easily as gasoline

(d) Alcohols are corrosive in nature

Answer 1

Correct option is (a) Anti-knock characteristics of alcohol are poor

The best I can explain: Alcohol is a high octane fuel. It has an anti-knock index number of over 100. The engines which use the high octane fuel run more efficiently by using higher compression ratios.