CSOC Scaffold Safety 2 — Questions and Answers
Question 1: What does a red scaffold tag indicate?
- The scaffold is safe for authorized personnel only
- The scaffold is unsafe — do not use (Correct answer)
- The scaffold is under construction or being dismantled
- The scaffold is approved for heavy loading only
Correct answer: The scaffold is unsafe — do not use
A red scaffold tag means the scaffold is unsafe and must not be used by anyone until it has been repaired and re-inspected by a competent person.
Question 2: What should a worker do upon noticing that a scaffold they need to use is damaged?
- Use it carefully and complete the work quickly to minimize risk
- Report it to the supervisor immediately and do not use the scaffold (Correct answer)
- Attempt minor repairs themselves before using it
- Use only the undamaged sections of the scaffold
Correct answer: Report it to the supervisor immediately and do not use the scaffold
Damaged scaffolding must be reported immediately and must not be used under any circumstances, as it poses a serious risk of collapse and falls.
Question 3: How frequently must a scaffold be formally inspected under Singapore WSH (Scaffolds) Regulations?
- Once a month or after any event affecting stability
- Every 14 days or before each new work crew begins
- Every 7 days and after any event that may affect its stability (Correct answer)
- Only before first use and after severe weather
Correct answer: Every 7 days and after any event that may affect its stability
Singapore WSH (Scaffolds) Regulations require formal inspection by a competent person at least every 7 days and after any event such as storms or impacts that could compromise stability.
Question 4: In scaffolding terminology, what is a 'standard'?
- A horizontal tube running parallel to the building face
- A diagonal brace providing lateral stability
- A vertical tube that carries the weight of the scaffold to the ground (Correct answer)
- A document recording the scaffold's safe working load
Correct answer: A vertical tube that carries the weight of the scaffold to the ground
Standards are the vertical poles or tubes that carry the combined load of the scaffold, workers, and materials down to the base plates and ground.
Question 5: What is the function of putlogs or transoms in a scaffold structure?
- To tie the scaffold horizontally to the building wall
- To provide the main vertical load-bearing support
- To act as diagonal bracing between scaffold bays
- To support the scaffold planks forming the working platform (Correct answer)
Correct answer: To support the scaffold planks forming the working platform
Putlogs and transoms are horizontal members that span across the scaffold to directly support the planks or boards that form the working platform.
Question 6: By whom must a permit-to-work for scaffold erection be issued in Singapore?
- The scaffold materials supplier
- The building developer or property owner
- A competent person authorized by the site occupier (Correct answer)
- The local town council or building authority
Correct answer: A competent person authorized by the site occupier
Singapore WSH regulations require that the permit-to-work for scaffold erection or dismantling be issued by a competent person who is authorized by the occupier of the workplace.
Question 7: What must be done before beginning the dismantling of scaffolding on a construction site?
- Apply red scaffold tags and notify the developer
- Request written approval from the building authorities
- Remove all materials and clear the area directly below the scaffold (Correct answer)
- Obtain a new permit-to-work from the main contractor only
Correct answer: Remove all materials and clear the area directly below the scaffold
All materials must be removed from the scaffold and the ground area below must be cleared of workers and the public before dismantling begins to prevent injuries from falling components.
CSOC Scaffold Safety 2
What does a red scaffold tag indicate?