Technician A says some catalytic converters have an air hose connected from the belt-driven air pump to the oxidation catalyst. Technician B says that in these catalytic converters the air hose from the air pump is connected to the reduction catalyst. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because the air hose from the belt-driven air pump is indeed connected to the oxidation catalyst in some catalytic converters to help burn off hydrocarbons and carbon monoxide. Technician B is incorrect because the air hose is not connected to the reduction catalyst, which is primarily involved in reducing NOx emissions without the need for additional oxygen.

Technician a Says Some Catalytic Converters Have an Air Hose