CITB General Site Safety and Signs — Questions and Answers
Question 1: What does a circular blue sign with a white symbol indicate on a construction site?
- A prohibition — something you must NOT do
- A warning of a hazard ahead
- A mandatory instruction — something you MUST do (Correct answer)
- Safe condition information such as an exit route
Correct answer: A mandatory instruction — something you MUST do
Blue circular signs with white symbols are mandatory signs — they tell you something you MUST do, such as wear a hard hat, wear hi-vis clothing, or use ear protection. They are required under the Health and Safety (Safety Signs and Signals) Regulations 1996.
Question 2: What shape and colour is a prohibition sign?
- Blue circle with white symbol
- Yellow triangle with black symbol
- Red circle with a diagonal line through a black symbol (Correct answer)
- Green rectangle with white symbol
Correct answer: Red circle with a diagonal line through a black symbol
Prohibition signs are circular with a red border, red diagonal line, and a black symbol on a white background. They indicate actions that are NOT permitted, such as 'No Smoking', 'No Entry', or 'Do Not Use Mobile Phones'.
Question 3: What is a CSCS card and why is it important?
- A Construction Safety Cleaning Standard for site tidiness
- A Construction Skills Certification Scheme card that proves the holder has the right training and qualifications for their role (Correct answer)
- A fire safety certificate issued by the fire brigade
- A credit card for purchasing safety equipment
Correct answer: A Construction Skills Certification Scheme card that proves the holder has the right training and qualifications for their role
The CSCS (Construction Skills Certification Scheme) card demonstrates that the holder has achieved a recognised level of training and qualification for their occupation. Most UK construction sites require workers to hold a valid CSCS card before they are allowed on site.
Question 4: What should you do if you notice a hazard on site that could cause harm?
- Ignore it if it is not in your work area
- Report it immediately to your supervisor or site manager (Correct answer)
- Fix it yourself regardless of your training
- Make a note to mention it at the next weekly meeting
Correct answer: Report it immediately to your supervisor or site manager
Under Section 7 of the Health and Safety at Work etc. Act 1974, workers have a duty to report hazards and unsafe conditions to their employer or supervisor as soon as they are identified. Delays in reporting can lead to accidents and injuries.
Question 5: What does a yellow triangular sign with a black symbol warn of?
- A safe condition or escape route
- A mandatory action you must take
- A hazard or danger in the area (Correct answer)
- A prohibition — something not allowed
Correct answer: A hazard or danger in the area
Yellow (amber) triangular signs with black symbols and borders are warning signs. They alert you to a specific hazard or danger, such as 'Caution: Overhead Cables', 'Warning: Deep Excavation', or 'Danger: High Voltage'. They do not tell you what to do, only what to be aware of.
Question 6: What is a 'toolbox talk' on a construction site?
- A meeting to discuss which tools need replacing
- A short, informal safety briefing on a specific hazard or safe working practice relevant to the current work (Correct answer)
- A formal disciplinary hearing about safety violations
- A manufacturer's demonstration of new power tools
Correct answer: A short, informal safety briefing on a specific hazard or safe working practice relevant to the current work
A toolbox talk is a short (5-15 minute), focused safety briefing given to workers on a specific topic relevant to their current tasks. Topics might include working at height, manual handling, or site-specific hazards. They are a key part of ongoing safety communication on site.
CITB General Site Safety and Signs
What does a circular blue sign with a white symbol indicate on a construction site?