Safety Procedures & Tool Usage Flashcards

Before working on a vehicle's airbag (SRS) system, what is the recommended procedure after disconnecting the negative battery cable?

Answer: Wait the manufacturer-specified time, often several minutes, for the backup capacitor to discharge

The SRS module stores energy in a reserve capacitor, so you must wait the specified time to prevent accidental deployment.

When placing a jack stand under a vehicle, where should it be positioned?

Answer: At the manufacturer's specified lift or support points on the frame or pinch weld

Manufacturer-specified support points are reinforced to carry the vehicle's weight safely.

Which fire extinguisher class is designed for flammable liquids such as gasoline and oil?

Answer: Class B

Class B extinguishers are rated for flammable liquids like gasoline, oil, and solvents.

A technician needs to loosen a rounded-off brake line fitting. Which tool is the best choice?

Answer: Flare-nut (line) wrench

A flare-nut wrench contacts more flats of the fitting while still slipping over the tubing, reducing the risk of further rounding.

What is the primary hazard of using an impact socket versus a chrome hand socket on an impact wrench?

Answer: Chrome sockets are brittle and can shatter under impact loads

Chrome hand sockets are hardened and brittle, so impact forces can crack them and send fragments flying.

When working on a hybrid vehicle's high-voltage system, what color are the high-voltage cables typically?

Answer: Orange

SAE standards designate orange for high-voltage cables on hybrid and electric vehicles.

What does a Safety Data Sheet (SDS) provide?

Answer: Hazard, handling, and first-aid information for a chemical product

OSHA requires SDSs to describe a chemical's hazards, safe handling, storage, and emergency measures.