Technician A says that when a DPF is regenerated, any accumulated ash is burned off. Technician B says that when a DPF is regenerated, entrapped soot is burned off. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

During a DPF (Diesel Particulate Filter) regeneration, entrapped soot is burned off, not ash. Ash, which is a byproduct of combustion and cannot be burned off, accumulates over time and must be physically removed.

Technician a Says That When a DPF Is Regenerated, Any