Workplace and Safety Communication
What this domain tests
This domain covers the language of safety: sign meanings, hazard and risk vocabulary, PPE, emergency instructions and incident reporting. Questions ask you to interpret a sign or notice, choose the correct modal in a rule, complete an incident report or decide the right action in an emergency.
Sign conventions
Four categories are tested by shape and colour:
- Prohibition: red circle with a diagonal slash - 'No smoking', 'Do not enter'.
- Mandatory: blue circle - 'Safety helmets must be worn', 'Ear protection must be used'.
- Warning: yellow triangle - 'Caution: hot surface', 'Risk of electric shock'.
- Safe condition and fire equipment: green rectangle - first aid point, emergency exit, fire extinguisher. The shape tells you the type before you read the words.
Hazard, risk and control
A hazard is something that can cause harm (a rotating shaft, a chemical). Risk is the chance and severity of harm. Controls follow a hierarchy: eliminate the hazard, substitute it, use engineering controls (guards, ventilation), then administrative controls (procedures, training), and finally PPE as the last line of defence. PPE includes helmets, goggles, gloves, ear defenders, respirators, high-visibility clothing and safety footwear.
Modal rules
Must = compulsory rule: 'Guards must be fitted.' Must not = prohibited: 'Must not be removed while the machine is running.' Should = recommended: 'The area should be kept clear.' May = possible hazard: 'Sparks may ignite dust.'
Reporting
A near miss is an event that could have caused harm but did not. Incident reports record date, time, location, people involved, what happened, injury, cause and action taken. Report near misses as well as injuries.
Worked example
A blue circle shows a white hard hat. Reasoning: blue circle = mandatory, so the message is 'Safety helmets must be worn'. A yellow triangle would warn of a falling-object hazard; a red circle with a slash would prohibit entry.
Traps that cost marks
- Mixing mandatory (blue circle) with warning (yellow triangle).
- Using 'should' for a legal or site rule that is 'must'.
- Forgetting that near misses are reportable.
- In an emergency, collecting tools or using a lift instead of raising the alarm and evacuating.
- Ignoring the specific wording of a sign ('must be worn' versus 'are recommended').