Occupational Safety, Environmental Protection and Professional Ethics
Safety, environment and ethics
This domain tests safe work around pumps, electricity, fertilizers and acids, plus environmental protection and honest professional conduct. It expects prevention, not just emergency response.
Core rules
- Isolate and lock out electrical equipment before repair; use residual current devices, earthing and dry hands; never bypass a safety switch.
- Store and inject fertilizers and acids with labelled tanks, PPE, eye wash and a spill kit; add acid to water, never water to acid; never mix acid with chlorine.
- Install backflow prevention to protect the water source; keep chemicals away from drains and water bodies.
- Dispose of filters, flushed water, packaging and damaged plastic responsibly; avoid burning PVC.
- Ethics: design for the site, disclose limitations, respect confidentiality, avoid conflicts of interest and do not oversell yield or subsidy.
Worked example
A technician finds a damaged cable on a farmer’s pump. The correct sequence is to switch off and isolate the supply, lock/tag the isolator, test for dead, report the defect, and replace the cable with a suitably rated and earthed one. Running the pump with a temporary bypass would risk electrocution and is not acceptable even if the farmer insists. The reasoning is that electrical safety and legal compliance override convenience.
Traps
Do not work live; do not mix chemicals or use unlabelled containers; do not omit backflow protection; do not discharge chemical rinsate into a drain; do not make promises outside your authority or conceal a safety defect.