Tools, equipment and workshop safety
What this domain tests
Workshop questions check that you can select the right tool, use it safely and assess risk in a way an inspector would accept. “Be careful” earns nothing; specific controls do.
Safety framework
- Hierarchy of control: eliminate the hazard, substitute a safer method, use engineering controls (guards, extraction, interlocks), then administrative controls (permits, training, signage), then PPE as the last line.
- Before machining: secure the work, remove loose clothing and tie hair back, remove jewellery, check guards and the emergency stop, isolate before changing blades or drill bits.
- PPE: goggles to EN 166 for cutting and dust; ear defenders above roughly 85 dB(A); a dust mask rated for the dust, not a nuisance mask.
- Workshop rules: one operator per machine, no distraction, report damage, keep aisles clear, store blades guarded; electrical equipment PAT tested and RCD protected; adhesives and finishes used with ventilation.
Worked example
Risk assessment for drilling a 6 mm hole in aluminium on a pillar drill. Hazard: rotating chuck entraining hair or gloves; swarf; noise. Who: student operator. Likelihood medium, severity high. Controls: clamp the work in a machine vice, never hold it by hand; wear goggles; no gloves near the chuck; set the correct speed; clear swarf with a brush, not fingers; lower the guard. Residual risk is low but not zero, so supervision remains. The reasoning shows each control matches a hazard and the hierarchy is followed.
Traps
- Listing PPE as the first and only control.
- Ignoring swarf, dust or fumes.
- Saying “use a guard” without saying what it guards.
- Forgetting isolation before maintenance.