EV & Hybrid Vehicle Processing Flashcards
7 cards from real AARC 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 & Hybrid Vehicle Processing flashcards as text
What is the primary reason high-voltage EV battery packs must be stored separately from other vehicle fluids at a recycling facility?
Answer: To prevent thermal runaway ignition near flammable materials
Thermal runaway in damaged lithium-ion cells can ignite nearby flammable fluids, so segregated storage is required for fire safety.
When a hybrid vehicle's nickel-metal hydride (NiMH) battery is being removed, what fluid hazard is also present inside the battery module?
Answer: Potassium hydroxide electrolyte
NiMH batteries use an alkaline potassium hydroxide electrolyte that is corrosive and can cause chemical burns.
Which color coding is federally recognized to indicate high-voltage components and wiring in hybrid and electric vehicles?
Answer: Orange
SAE J1772 and OEM standards use orange to identify high-voltage cables and components in hybrid and EV systems.
A technician measures 48 V between the HV bus bars after the service disconnect has been removed. What is the most likely cause?
Answer: Normal capacitor bleed-down in progress
Inverter capacitors retain charge briefly after disconnect removal; technicians must wait for full bleed-down before touching HV components.
Under RCRA regulations, spent lithium-ion batteries from EVs are classified as which type of waste when sent off-site for recycling?
Answer: Universal waste
EPA's Universal Waste Rule covers lithium batteries, simplifying management requirements compared to full hazardous waste regulations.
What personal protective equipment is specifically required when disabling a high-voltage battery system in a flood-damaged EV?
Answer: Class 0 or higher rated rubber insulating gloves and face shield
Class 0 insulating gloves (rated ≥1,000 V) and a face shield protect against electric shock and arc flash during HV system work.
Which recycling partner certification should an AARC-certified recycler verify before transferring end-of-life EV battery packs?
Answer: R2v3 or e-Stewards certification
R2v3 (Responsible Recycling) and e-Stewards are industry standards that verify downstream battery recyclers handle materials responsibly.