Practice Test Geeks(EVITP) Electric Vehicle Infrastructure Program Practice Test
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EV Technology Fundamentals Flashcards

7 cards from real EVITP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 EV Technology Fundamentals flashcards as text

  1. In the United States, Level 1 EV charging typically uses which supply voltage?

    Answer: 120 V AC

    Level 1 charging uses a standard 120 V household receptacle.

  2. An EV uses 300 Wh per mile and has 60 kWh of usable battery capacity. What is its approximate range?

    Answer: 200 miles

    60,000 Wh ÷ 300 Wh/mile = 200 miles.

  3. A 48 A, 240 V Level 2 EVSE (about 11.5 kW) is connected to a vehicle whose onboard charger is rated at 7.2 kW. What will the charging rate be?

    Answer: 7.2 kW

    AC charging is limited by the lower of the EVSE rating and the vehicle's onboard charger capacity.

  4. What is the function of the traction inverter in a battery electric vehicle?

    Answer: It converts DC battery power to AC to drive the traction motor

    Most EV traction motors are AC machines, so the inverter converts the battery's DC into variable-frequency AC.

  5. Which DC fast-charging standard originated in Japan?

    Answer: CHAdeMO

    CHAdeMO was developed by Japanese automakers and utilities.

  6. What does vehicle-to-grid (V2G) capability allow an EV to do?

    Answer: Send stored battery energy back to the utility grid

    V2G uses bidirectional charging so the vehicle can export power to the grid.

  7. Which component supplies power to an EV's 12 V accessory system from the high-voltage traction battery?

    Answer: DC-DC converter

    The DC-DC converter steps high-voltage DC down to about 12 V to run accessories and keep the auxiliary battery charged.