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.



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