Q240
Which of the following fuel has little tendency towards detonation?
A.
Benzene
B.
Iso-octane
AnswerC.
Normal heptane
D.
Alcohol
Answer: Option B
Solution
Answer: Option B
Solution:
Iso-octane has little tendency towards detonation.
gasoline with the same knocking characteristics as a mixture of 90% iso-octane and 10% heptane would have an octane rating of 90. Because some fuels are more knock-resistant than iso-octane, the definition has been extended to allow for octane numbers higher than 100.