While having a discussion about spark plugs, Technician A says that blistering of the insulator tip is indicative of a plug that has been too hot. Technician B says that the accumulation of specks that resemble pepper is indicative of a plug that has been too hot. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are correct. Blistering of the insulator tip indicates that a spark plug has been operating at too high a temperature. Similarly, the accumulation of specks that resemble pepper on the spark plug is also a sign of overheating.

While Having a Discussion About Spark Plugs, Technician a Says