Workplace Communication and Occupational Health and Safety (OHS) Practices
This domain tests how you receive, confirm, and hand over work in a shop, and how you apply OSH rules - in the Philippines, RA 11058 and DOLE D.O. 198-18 - along with manufacturer precautions. Expect items on PPE selection, hazard reporting, fire response, chemical handling, and 5S housekeeping.
Core rules
- Match PPE to the task: safety glasses for grinding or under-vehicle work, gloves for fluids, hearing protection near air tools, respirator for paint and solvents.
- Confirm instructions: read the job order, repeat the task back, and record findings on the checklist instead of relying on memory.
- Control energy first: key out, battery disconnected for fuel or electrical work, wheels chocked, vehicle on stands.
- Know fire classes: water is for Class A only; use dry chemical or CO2 on fuel and electrical fires.
- Keep the SDS available for every chemical and segregate used oil, coolant, and batteries as hazardous waste.
Worked example
A PMS inspection finds a wet fuel line near the tank. Reasoning: fuel vapor is heavier than air and ignites from a hot exhaust or a spark. Correct sequence: stop the engine, remove the key, do not crank or test-start, ventilate the bay, place absorbent under the drip, tag the vehicle DO NOT OPERATE, report to the supervisor, and record the defect. Do not simply wipe it and continue.
Traps
Using water on a fuel or electrical fire; loose sleeves near belts and fans; skipping PPE for a quick job; leaving a spill unmarked; disconnecting a battery without noting radio or ECU settings.