Vehicle Dismantling Procedures Flashcards

When is it appropriate to use a die grinder with a cut-off wheel to separate a seized exhaust manifold stud?

Answer: Only after penetrating oil has been applied and the stud is still immovable after a reasonable wait

After penetrant application and a soak period, a cut-off wheel may be used to cut a seized stud flush if other methods fail, particularly when the engine block will be reused.

During the removal of a lithium-ion high-voltage battery pack, a technician notices the pack is swollen. The correct response is to:

Answer: Stop work immediately, quarantine the vehicle, and follow the OEM thermal runaway protocol

A swollen lithium-ion pack indicates cell damage and potential thermal runaway risk; the vehicle must be quarantined and OEM emergency procedures followed.

What is the significance of checking a vehicle's VIN against the National Motor Vehicle Title Information System (NMVTIS) before dismantling?

Answer: It verifies the vehicle is not reported stolen and confirms title status, protecting the recycler from liability

NMVTIS checks confirm the vehicle has a clear title and is not listed as stolen, shielding the recycler from criminal liability and ensuring regulatory compliance.

Which type of fire extinguisher is recommended for a vehicle fire involving both gasoline and energized electrical systems in a dismantling facility?

Answer: Class B CO2 or dry chemical extinguisher rated for Class B and C fires

A CO2 or dry chemical extinguisher rated for Class B (flammable liquids) and Class C (energized electrical) fires is appropriate for combined gasoline-electrical vehicle fires.

What is the recommended method for handling a fuel tank that still contains gasoline during vehicle dismantling?

Answer: Pump out as much fuel as possible using an approved fuel extraction pump, then remove the tank

Using an approved fuel extraction pump to remove gasoline before tank removal minimizes fire and spill hazards and allows the fuel to be stored or reused.

A recycler is removing a used transmission cooler line that is corroded. Which precaution is MOST important?

Answer: Wear face protection and have absorbent material ready for fluid capture, as corroded lines may break unexpectedly

Corroded lines can fracture without warning, spraying transmission fluid; face protection and absorbent materials prevent injury and environmental contamination.

In a vehicle dismantling operation, what does 'parts harvesting sequence' refer to?

Answer: A prioritized, systematic order of part removal that maximizes efficiency, safety, and part quality

A parts harvesting sequence establishes a safe and efficient order of removal—typically high-value or fragile parts first—to protect component integrity and worker safety.