Environmental Awareness, Occupational Health and Workplace Ethics
Domain 9 tests environmental responsibility and safe, honest conduct in the workshop and field: emission control, waste segregation, noise and dust control, and professional ethics.
Core rules
- Diesel exhaust contains NOx, particulate matter and CO; Bharat Stage norms tighten these limits. Do not remove or tamper with emission-control devices.
- Used oil, filters, coolant, batteries and solvent rags are hazardous waste: segregate, label and send to authorised recyclers.
- Prevent spills with drip trays; keep a spill kit; never wash oil into drains or burn waste oil.
- Occupational health: protect hearing around engines and grinders, protect skin from diesel and solvents, and control dust when cleaning.
- Ethics: diagnose honestly, explain options, do not fit unnecessary parts, respect customer property and data, and report your own mistakes.
Worked example
A 5-litre used-oil spill occurs on the workshop floor. Reason: stop the source, protect drains with a sock or sand, absorb with inert absorbent, collect the contaminated material in a labelled hazardous-waste container, clean the floor, and record the incident. Do not hose it down: that spreads oil into soil and water and may breach pollution rules. The same logic applies to coolant and battery acid.
Traps
Burning waste oil; mixing used oil with coolant or solvent; hiding a spill; removing a DPF or catalytic converter; disposing of batteries in general waste.