Question

technician a says that the secondary air injection pump may be either electrically or belt driven. technician b says th the secondary air injection pump is only used when the engine is fully warmed up to help cool the catalytic converter. who is correct? a. technician a b. technician b c. both technician a and technician b d. neither technician a nor technician b

Explanation:

• Technician A: Secondary air injection pumps can indeed be either electrically or belt - driven. This is a common design feature in many vehicle emission control systems.
• Technician B: The secondary air injection pump is mainly used during cold - start conditions to help oxidize unburned hydrocarbons and CO in the exhaust (not to cool the catalytic converter when the engine is fully warmed up).

Answer:

a. Technician A