Question

technician a says that the secondary air injection pump may be either electrically or belt driven. technician b says that 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 engine systems.
• Technician B: The secondary - air - injection pump is mainly used during cold - start conditions. It helps in reducing emissions by providing additional oxygen for more complete combustion in the exhaust system (not for cooling the catalytic converter when the engine is fully warmed up).

Answer:

a. Technician A