Hydrocarbons Question 164
Question: Knocking sound occurs in engine when fuel [CPMT 1981]
Options:
A) Ignites slowly
B) Ignites rapidly
C) Contains water
D) Is mixed with machine oil
Show Answer
Answer:
Correct Answer: B
Solution:
Knocking - Sudden and irregular burning of the fuel mixture causing jerks against the piston and gives rise to violent sound.
This is known as knocking.
BETA
