Demolition and Dismantling Hazards
Premature collapse, structural instability, hazardous materials, services, falling debris, plant, dust, noise and public exposure.
How to prepare for CN1
Learn the principle, locate scenario evidence, explain why it matters, choose proportionate controls and show how actions will be prioritised and reviewed.
Core concepts
Concept 1
Premature collapse, structural instability, hazardous materials, services, falling debris, plant, dust, noise and public exposure.
Exam cue: Name the specific construction evidence before applying the principle or control.
Concept 2
Use engineering knowledge, surveys and a planned sequence that preserves stability and controlled exclusion throughout demolition.
Exam cue: Prefer prevention and collective protection before procedural or personal controls.
Concept 3
Soft strip, partial demolition and temporary pauses can alter load paths and require the method and supports to be reassessed.
Risk pitfalls and guardrails
Giving a generic hazard or control list without connecting it to people, task and site conditions.
Guardrail: Do not give a generic control list without linking it to the task, people, site conditions and verification method.
Treating a document, inspection or item of PPE as proof that the underlying risk is controlled.
Guardrail: Do not give a generic control list without linking it to the task, people, site conditions and verification method.
Memory anchors
CN1 5.1 · Demolition and Dismantling Hazards
Premature collapse, structural instability, hazardous materials, services, falling debris, plant, dust, noise and public exposure.
Demolition and Dismantling Hazards · decision cue
Use engineering knowledge, surveys and a planned sequence that preserves stability and controlled exclusion throughout demolition.
Demolition and Dismantling Hazards · evidence check
Soft strip, partial demolition and temporary pauses can alter load paths and require the method and supports to be reassessed.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
What is Pass Harbor?
Completely free exam prep for 247 UK exams.
- Practice questions
- Flashcards
- Study guides
- Mock exams
- No registration
- No paywall
- Start instantly
“No more expensive exam prep. Quality study tools should be accessible to everyone.”