Spark plug design is being discussed. Technician A says a plug with too short a reach makes it difficult to attach the plug wire boot. Technician B says a plug with too long a reach may cause preignition. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because a spark plug with too long a reach can protrude into the combustion chamber, potentially causing preignition. Technician A's statement is incorrect as the reach of the spark plug does not affect the attachment of the plug wire boot.

Spark Plug Design Is Being Discussed