MITO Light Auto L4 study materials
MITO Light Auto L4 study resources

MITO Light Auto L4: Health, Safety and Industry Professional Practice

MITO Light Auto L4 · Work through your exam, one topic at a time.

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Health, Safety and Industry Professional Practice

Health, Safety and Industry Professional Practice

This domain tests safe work habits, hazard control, environmental responsibility and professional conduct in a light vehicle workshop. It includes PPE, lifting, fire, chemicals, waste and accurate documentation.

Core rules

  • Follow the hierarchy of control: eliminate, substitute, engineer, administrate, then PPE. PPE is the last line of defence.
  • Use wheel chocks, axle stands and rated lifting points; never work under a vehicle held only by a jack.
  • Fuel, solvents and used oil are hazardous; store in labelled containers and dispose through approved waste streams.
  • Match the extinguisher to the fire class: water for class A only, CO₂ or dry powder for electrical and flammable liquid fires, and never water on a live electrical or fuel fire.
  • High-voltage systems require isolation, verified zero energy, and the manufacturer's wait time before work.
  • Record work performed, parts used and safety checks; inaccurate records are an ethical and legal problem.

Worked example

A solvent-soaked shop rag is left in an open bin. The correct response is to remove the ignition source, place the rag in a self-closing metal waste can, ventilate the area and dispose of it as hazardous waste. Solvent vapours are heavier than air and can ignite; spontaneous combustion is a real risk with oily rags. The fix is not to dilute the spill or hide the rag.

Traps

  • Using water on a fuel or electrical fire.
  • Reaching into a running engine bay or near a cooling fan.
  • Assuming a jack is a safe support.
  • Disconnecting an HV battery without waiting the specified time or verifying zero volts.
  • Disposing of brake fluid or coolant into the drain.