Technician A says that a knocking sound in a diesel is normal and is caused by a sharp rise in cylinder pressure. Technician B says that a knocking sound in a diesel is caused by ignition delay of fuel. Who is correct?
A)Technician A
B)Technician B
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are correct. The knocking sound in a diesel engine is normal and is caused by a sharp rise in cylinder pressure due to the ignition delay of fuel.

Technician a Says That a Knocking Sound in a Diesel