There are two primary types of ___ chargers: single-phase (7.2 kW-11 kW) and three-phase (22 kW).

There are two primary types of ___ chargers: single-phase (7.2 kW-11 kW) and three-phase (22 kW).

• A. on-board
• B. off-board
• C. Level 1
• D. Level 2

Answer: (A)

This question is about where the AC-to-DC conversion happens and what the vehicle can accept. The two power ranges given (single-phase around 7.2–11 kW and three-phase around 22 kW) describe the input capabilities of the car’s own converter, i.e., the on-board charger. That’s inside the vehicle, handling the AC from the charging source and converting it to DC to charge the battery. An off-board charger would be the external charging station, not defined by these internal-charger power ranges. Level 1 and Level 2 refer to charging speeds of external equipment, not the location of the charger inside the car, so they don’t fit the description.

This question is about where the AC-to-DC conversion happens and what the vehicle can accept. The two power ranges given (single-phase around 7.2–11 kW and three-phase around 22 kW) describe the input capabilities of the car’s own converter, i.e., the on-board charger. That’s inside the vehicle, handling the AC from the charging source and converting it to DC to charge the battery. An off-board charger would be the external charging station, not defined by these internal-charger power ranges. Level 1 and Level 2 refer to charging speeds of external equipment, not the location of the charger inside the car, so they don’t fit the description.