The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as
A. auto ignition
B. pre-ignition
C. detonation
D. none of the mentioned
Answer:A
The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as
A. auto ignition B. pre-ignition C. detonation D. none of the mentioned
Explanation: Pre-ignition is defined as the ignition of charge by some hot surface in the engine cylinder before operation of spark plug.