CSCS MCQ 5 — Questions and Answers
Question 1: When should a safety harness be inspected before use?
- Once a month during a scheduled team inspection
- Before every use by the wearer (Correct answer)
- Only after a fall has occurred
- Annually by a third-party certifying body
Correct answer: Before every use by the wearer
The wearer must inspect their harness before every use for cuts, fraying, damaged buckles, or corrosion that could cause it to fail during a fall.
Question 2: What action should be taken when a worker receives a CSCS card that has expired?
- Continue using the expired card until a new one arrives
- Use any colleague's valid card temporarily
- Stop work in roles requiring a CSCS card and renew immediately (Correct answer)
- Ask the site manager for a temporary extension stamp
Correct answer: Stop work in roles requiring a CSCS card and renew immediately
An expired CSCS card is not a valid card — the worker must stop working in CSCS-required roles and renew before returning to those duties.
Question 3: Hand-arm vibration syndrome (HAVS) is caused by prolonged exposure to:
- Loud noise above 85 dB
- Vibration from power tools such as drills and compactors (Correct answer)
- Repetitive lifting of loads over 25 kg
- Chemical solvents absorbed through the skin
Correct answer: Vibration from power tools such as drills and compactors
HAVS is an irreversible condition caused by regular exposure to hand-transmitted vibration from power tools, leading to numbness, pain, and loss of grip.
Question 4: Which of the following is a sign that an excavation is at risk of collapse?
- Clear water pooling at the bottom
- Cracks appearing near the top edge of the excavation (Correct answer)
- Soil becoming darker in color with depth
- Increase in ambient temperature near the trench
Correct answer: Cracks appearing near the top edge of the excavation
Cracks near the edge of an excavation indicate soil movement and imminent collapse — the area should be evacuated and the excavation shored immediately.
Question 5: What does a Permit to Work system ensure on a construction site?
- That all workers have valid CSCS cards before entering
- That high-risk activities are formally authorized, controlled, and communicated (Correct answer)
- That subcontractors have signed the site induction form
- That daily output targets are met and logged
Correct answer: That high-risk activities are formally authorized, controlled, and communicated
A Permit to Work is a formal written system that ensures high-risk tasks (confined space entry, hot work, live electrical work) are properly planned, authorized, and supervised.
Question 6: What is the first step in the risk assessment process?
- Implement control measures
- Evaluate the risk level
- Identify the hazards (Correct answer)
- Record the assessment findings
Correct answer: Identify the hazards
You cannot assess or control a risk until you have first identified what the hazards are — hazard identification is always step one.
Question 7: When a worker receives a first aid injury on site, the NEXT step after giving first aid is to:
- Allow the worker to self-discharge if they feel okay
- Record the incident in the site accident book as soon as possible (Correct answer)
- Immediately notify OSHA regardless of severity
- Have the worker complete a full incident report within 30 days
Correct answer: Record the incident in the site accident book as soon as possible
All injuries, however minor, must be recorded in the site accident/incident book promptly to maintain a legal record and support any future investigation.
CSCS MCQ 5
When should a safety harness be inspected before use?