AARC Recycling Processes & Dismantling Procedures 4 — Questions and Answers
Question 1: A customer returns a used engine claiming it failed after 500 miles. Under ARA's standard warranty policy for used engines, what is the typical coverage period?
- 30 days or 1,000 miles, whichever comes first
- 90 days or 4,000 miles, whichever comes first (Correct answer)
- 6 months unlimited mileage
- 1 year or 12,000 miles, whichever comes first
Correct answer: 90 days or 4,000 miles, whichever comes first
ARA's standard used parts warranty for engines is 90 days or 4,000 miles, whichever comes first, though individual facilities may offer extended coverage.
Question 2: When dismantling a diesel vehicle, which fluid requires special handling due to its classification as a potential carcinogen at elevated temperatures?
- Diesel exhaust fluid (DEF)
- Used diesel engine oil (Correct answer)
- Diesel fuel
- Diesel particulate filter cleaning solution
Correct answer: Used diesel engine oil
Used motor oil is classified as a possible human carcinogen (IARC Group 2B) due to combustion byproducts, requiring proper PPE and handling as a recyclable waste.
Question 3: Which OSHA standard primarily governs employee right-to-know requirements for hazardous chemicals used or generated at an automotive recycling facility?
- 29 CFR 1910.132 — Personal Protective Equipment
- 29 CFR 1910.1200 — Hazard Communication Standard (HazCom) (Correct answer)
- 29 CFR 1910.147 — Lockout/Tagout
- 29 CFR 1910.119 — Process Safety Management
Correct answer: 29 CFR 1910.1200 — Hazard Communication Standard (HazCom)
OSHA's Hazard Communication Standard (HazCom/GHS) at 29 CFR 1910.1200 requires SDSs, labeling, and employee training on chemical hazards.
Question 4: In vehicle dismantling, 'depollution' refers to:
- Installing emission control devices on recycled vehicles
- The systematic removal of all environmentally harmful fluids and components before crushing or shredding (Correct answer)
- Cleaning parts with biodegradable solvents only
- Certifying that a recycled part meets current emissions standards
Correct answer: The systematic removal of all environmentally harmful fluids and components before crushing or shredding
Depollution is the industry term for the pre-shredder removal of hazardous fluids, batteries, tires, airbags, mercury switches, and other regulated components.
Question 5: When removing a lithium-ion battery from a plug-in electric vehicle, a small fire starts in the battery pack. What is the CORRECT suppression method?
- Use a CO2 extinguisher to smother the fire quickly
- Apply large volumes of water to cool the battery and prevent thermal runaway propagation (Correct answer)
- Use a dry chemical extinguisher rated for Class B fires
- Smother the battery with sand to cut off oxygen supply
Correct answer: Apply large volumes of water to cool the battery and prevent thermal runaway propagation
Lithium-ion battery fires require massive water application for cooling because the fire is chemical (not oxygen-dependent); CO2 and dry chemical are ineffective against thermal runaway.
Question 6: What is the purpose of a 'bill of sale' or 'acquisition record' when purchasing a vehicle for dismantling at an AARC-certified facility?
- It is only required for vehicles purchased at auction
- It documents the seller's identity and vehicle ownership to deter trafficking in stolen vehicles (Correct answer)
- It is used exclusively for tax reporting purposes
- It replaces the need for a vehicle title in all states
Correct answer: It documents the seller's identity and vehicle ownership to deter trafficking in stolen vehicles
Acquisition records with seller ID information are a key anti-theft control required by many state laws and AARC certification to ensure vehicles are not stolen property.
Question 7: Which of the following best describes the 'R-1234yf' refrigerant that is increasingly found in late-model vehicles?
- It is a drop-in replacement for R-134a with identical recovery equipment requirements
- It is a low global warming potential refrigerant requiring dedicated, certified recovery equipment (Correct answer)
- It is no longer used in production vehicles as of 2020
- It is a natural refrigerant that can be vented legally in small quantities
Correct answer: It is a low global warming potential refrigerant requiring dedicated, certified recovery equipment
R-1234yf has a GWP of 4 (vs. R-134a's 1,430) but requires its own certified recovery/recycling equipment due to mild flammability and incompatibility with R-134a machines.
AARC Recycling Processes & Dismantling Procedures 4
A customer returns a used engine claiming it failed after 500 miles.
Under ARA's standard warranty policy for used engines, what is the typical coverage period?