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Under the CDM 2015 regulations, what document must be prepared specifically for demolition work before any activity begins on site?
A verbal briefing log
A written Demolition Plan
A generic site diary
Which hazardous material must be identified and, in most cases, removed by specialists before demolition begins in an older building?
Untreated timber
Asbestos-containing materials (ACMs)
Standard gypsum plasterboard
What is the primary purpose of a "pre-demolition structural survey"?
To determine the market value of the land
To check the historical significance of the architecture
To identify the structural integrity and potential for unplanned collapse
When using an exclusion zone around a demolition site, what is its main function?
To protect workers and the public from falling debris or plant movement
To provide a designated area for staff parking
To store all hazardous waste permanently
Which of the following is the most preferred method in the hierarchy of risk control for demolition?
Using personal protective equipment (PPE)
Remote demolition (e.g. using high-reach machinery or robots)
Manual demolition using hand tools at height
What must be done with services (gas, water, electricity) before demolition starts?
They must be left on to assist the demolition crew
They should only be turned off if a leak is detected
They should be located, marked, and disconnected / isolated
Who has the primary responsibility for ensuring that a demolition contractor is competent and has the necessary resources?
The supervisor
The employee
The client
What is the main danger of "structural instability" during a partial demolition?
Increased dust levels
Premature or uncontrolled collapse of the remaining structure
Slowing down the project timeline
When working at height during demolition, what should be the first consideration?
Purchasing the cheapest harness available
Avoiding work at height altogether if reasonably practicable
Using a ladder regardless of the task duration
What does a "Hot Works" permit usually cover on a demolition site?
Working in high temperatures during summer
The use of heavy machinery with internal combustion engines
Tasks involving open flames, sparks, or heat (e.g. oxy-acetylene cutting)
Why is "handover" of the site to the demolition contractor important?
It formally transfers the responsibility for site health and safety
It is just a formality for insurance purposes
It allows the architect to leave the project early
Which piece of equipment is commonly used to suppress dust during demolition?
Industrial fans
Water misters or hoses
Large vacuum cleaners
What is the danger of "unforeseen voids" in a building during demolition?
They can cause heavy plant machinery to fall through floors
They improve the speed of the demolition
They act as natural ventilation for dust
What must be provided to all demolition workers regarding site-specific risks?
A copy of the company's annual profit report
A map of the nearest city centre
A site induction and regular toolbox talks
If a building was built or refurbished before the year 2000, what should be assumed regarding asbestos?
It is definitely free of asbestos
Only the basement will contain asbestos
It may contain asbestos and requires a Refurbishment and Demolition Survey
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