Practice Test Geeks(CAR) Certified Automotive Recycler Practice Test
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Electric & Hybrid Vehicle Processing Flashcards

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

Read the first 7 Electric & Hybrid Vehicle Processing flashcards as text

  1. A recycler is processing a flood-damaged Tesla Model 3. Which action should be taken FIRST before any other disassembly step?

    Answer: Isolate the 12V auxiliary battery to disable the high-voltage contactor circuit

    Disconnecting the 12V auxiliary battery opens the BMS control circuit, preventing the high-voltage contactors from closing and energizing the drive system.

  2. Under EPA regulations, a used EV high-voltage battery pack that tests above 80% capacity and is resold for second-life energy storage is classified as:

    Answer: A reuse product, not a solid waste

    EPA's solid waste definition excludes materials that are legitimately reused as products; a battery sold into second-life storage avoids solid waste classification.

  3. What is the function of the pyrotechnic safety switch (PSS) found in some EV battery packs such as those in BMW i3 vehicles?

    Answer: It permanently severs the high-voltage circuit upon deployment of airbags

    The PSS uses a small explosive charge to physically cut the high-voltage bus bar, permanently isolating the battery when the airbag control module detects a severe crash.

  4. When testing a recovered EV battery pack for second-life potential, which parameter is the most critical indicator of remaining usable capacity?

    Answer: State of health (SOH) measured via capacity test

    SOH—expressed as a percentage of original rated capacity—is the definitive measure of battery degradation and determines suitability for second-life applications.

  5. A recycling facility worker notices a stored EV battery emitting a sweet or chemical odor and feels warm to the touch. The correct immediate response is to:

    Answer: Move it to an outdoor fire containment area and notify the fire department

    Odd odors and heat are early thermal runaway indicators; the pack must be moved outside immediately and emergency services alerted before full runaway occurs.

  6. Which high-voltage component in a hybrid vehicle stores energy recovered during regenerative braking in a Honda Accord Hybrid?

    Answer: A nickel-metal hydride battery module

    Honda's IMA and later hybrid systems use nickel-metal hydride battery modules to capture and store kinetic energy converted to electricity during braking.

  7. During EV battery pack disassembly, technicians must use insulated tools rated for at least how many volts to safely work near exposed busbars?

    Answer: 1,000 V

    NFPA 70E and OEM service standards require insulated hand tools rated at minimum 1,000 V for work on or near live or potentially live high-voltage automotive systems.