CSCS Trial Guide 4 ā Questions and Answers
Question 1: Which of the following is a LEGAL requirement before starting work in a confined space?
- Getting verbal permission from the site foreman
- Completing a confined space risk assessment and obtaining a Permit to Work (Correct answer)
- Wearing a high-visibility jacket and hard hat
- Having at least five years of site experience
Correct answer: Completing a confined space risk assessment and obtaining a Permit to Work
The Confined Spaces Regulations 1997 require a risk assessment and, for high-risk spaces, a Permit to Work before entry.
Question 2: What is the maximum time a worker can be exposed to Hand Arm Vibration (HAV) before reaching the action value?
- Exposure depends on the vibration magnitude of the tool, calculated using the HAV calculator (Correct answer)
- 2 hours per day regardless of tool type
- 4 hours per day regardless of tool type
- 8 hours per day for all tools
Correct answer: Exposure depends on the vibration magnitude of the tool, calculated using the HAV calculator
The HAV action value (2.5 m/sĀ²) and limit value (5 m/sĀ²) are calculated based on tool magnitude and daily exposure duration using the HAV points system.
Question 3: On a construction site, who has the primary responsibility for ensuring health and safety?
- The Health and Safety Executive (HSE)
- The principal contractor and all employers on site (Correct answer)
- The site safety officer alone
- The client who commissioned the work
Correct answer: The principal contractor and all employers on site
Under the Health and Safety at Work Act 1974, employers (including the principal contractor) are primarily responsible for health and safety on site.
Question 4: What should you do if you are asked to carry out a task you believe is unsafe?
- Carry out the task but work as quickly as possible
- Refuse the task and report your concerns to your supervisor or safety representative (Correct answer)
- Complete half the task and stop
- Wait until the end of the shift to raise the issue
Correct answer: Refuse the task and report your concerns to your supervisor or safety representative
Workers have a legal right and duty under the Health and Safety at Work Act to refuse unsafe work and report concerns without fear of dismissal.
Question 5: What is the purpose of a site induction on a construction project?
- To test workers' trade skills before allowing them on site
- To inform workers of site-specific hazards, rules, and emergency procedures (Correct answer)
- To assign tasks and daily work schedules to each worker
- To collect payment details and union membership information
Correct answer: To inform workers of site-specific hazards, rules, and emergency procedures
A site induction ensures all workers understand the specific hazards, safety rules, and emergency arrangements for that particular site.
Question 6: Which of the following best describes 'dynamic risk assessment'?
- A risk assessment completed by the principal designer before construction begins
- An ongoing, real-time assessment of changing hazards carried out by workers during a task (Correct answer)
- A computerised risk scoring system used by safety officers
- A formal written risk assessment updated every six months
Correct answer: An ongoing, real-time assessment of changing hazards carried out by workers during a task
Dynamic risk assessment is the continuous process of identifying and responding to new hazards as conditions change during the task.
Question 7: When should a worker wear a dust mask rated FFP3 on a construction site?
- When sweeping up general debris outdoors
- When cutting materials that produce fine respirable dust such as silica (Correct answer)
- When painting internal walls with latex paint
- Whenever working in a confined space regardless of dust levels
Correct answer: When cutting materials that produce fine respirable dust such as silica
FFP3 masks are required for very fine, hazardous dusts such as respirable crystalline silica (RCS) generated by cutting stone, concrete, or sand-based materials.
CSCS Trial Guide 4
Which of the following is a LEGAL requirement before starting work in a confined space?