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Mechanical Engineering · Q16

Automobile Engineering

Engineering and GATE · Mechanical Engineering · question 16

Q16

Petrol that detonates easily is called

A.
High octane petrol
B.
Low octane petrol
Answer
C.
Unleaded petrol
D.
Blended fuel

Answer: Option B

Solution

Answer: Option B
Solution:
The higher the octane number, the more compression the fuel can withstand before detonating . Therefore, high compressibility of the fuel matters mainly for gasoline engines.
Use of gasoline with lower octane numbers may lead to the problem of engine knocking
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