Detonation: Detonation is the spontaneous combustion of the end-gas (remaining fuel/air mixture) in the chamber. It always occurs after normal combustion is initiated by the spark plug.
Pre-ignition: Pre-ignition is defined as the ignition of the mixture prior to the spark plug firing.
50) The loud pulsating noise heard within the cylinder of an internal combustion engine is known as
Answer is:
Detonation
Explanation:
