If You Find or Disturb Asbestos

You are drilling a wall and break into a board you think may be asbestos. What is the FIRST thing you should do?

• ACover the hole with tape and continue drilling elsewhere
• BFinish the hole quickly then leave
• CStop work immediately and leave the area undisturbed✓
• DSweep up the debris and carry on

Answer: Stopping immediately limits how many fibres are released. Continuing, even briefly, keeps generating airborne dust in a space you are standing in.

After stopping work on a suspected asbestos disturbance, what should you do next?

• APrevent others entering and report it✓
• BMove the debris outside to a skip
• CPhotograph it and finish your shift as normal
• DOpen all the windows and use a fan to clear the dust

Answer: Restricting access stops the exposure spreading, and reporting starts the proper assessment. Fans and sweeping actively spread fibres.

Why must you never sweep up dust from a suspected asbestos disturbance?

• ASweeping is fine provided the dust is damp
• BSweeping is required before the area can be assessed
• CSweeping is only banned because it damages the brush
• DSweeping makes the fibres airborne again✓

Answer: Dry sweeping re-suspends settled fibres. Asbestos debris is cleaned only by trained people using class H vacuums or wet methods, never a broom.

Which type of vacuum cleaner may be used on asbestos debris by a trained operative?

• AA class H vacuum✓
• BA leaf blower on reverse
• CAny domestic vacuum cleaner
• DA standard workshop wet-and-dry vacuum

Answer: Only a class H vacuum has filtration fine enough to retain asbestos fibres. A domestic or standard site vacuum will pass fibres straight through the exhaust into the room.

You have accidentally disturbed asbestos and your clothing is contaminated. What should you do?

• ATake it home and wash it together with the family laundry
• BShake the clothing outside the building and then put it back on
• CBrush it down thoroughly with a stiff brush and carry on working
• DFollow your employer’s decontamination procedure✓

Answer: Taking contaminated clothing home has historically exposed workers’ families. Shaking or brushing releases fibres. Follow the decontamination procedure and dispose of or handle the clothing properly.

If a suspected asbestos incident occurs, what should be recorded?

• AThe incident and who may have been exposed✓
• BOnly the time the shift ended
• CNothing — reporting invites blame
• DOnly the cost of the repair

Answer: Recording who was present and what happened matters because effects appear decades later. It also allows the employer to assess exposure and act.

Who should you report a suspected asbestos discovery to?

• AA colleague on a different site
• BYour supervisor or the duty holder✓
• CThe material’s original manufacturer
• DNobody — simply avoid that room in future

Answer: The supervisor or duty holder can stop work, arrange sampling and update the register. Saying nothing leaves the next person to disturb it unwarned.

You find a damaged ceiling tile in a 1970s building and suspect asbestos. What should you NOT do?

• AStop work and leave the area
• BReport it to the duty holder
• CRestrict access to the room
• DPick up the pieces to examine them✓

Answer: Handling suspected asbestos debris releases fibres and contaminates your hands and clothing. Leave it exactly where it is and report it.

Before starting work that may disturb the fabric of a pre-2000 building, what should you check?

• AThe car parking arrangements
• BThe asbestos register for the building✓
• CThe building’s fire alarm certificate
• DThe weather forecast for the week

Answer: The register tells you what is known or presumed to be present and where. Checking it first is the single most effective way of avoiding accidental disturbance.

What should you do if the asbestos register for a building is not available before you start work?

• ADo not start until the information is provided✓
• BAssume the building is asbestos-free
• CAsk another trade to start first
• DStart anyway and stop if you see something suspicious

Answer: Working blind in a pre-2000 building risks disturbing asbestos without knowing. The duty holder must provide the information before work begins.

Which action is most likely to release a large number of asbestos fibres?

• AWalking past the material
• BUsing a power tool such as an angle grinder✓
• CPhotographing the material
• DLeaving the material sealed and undisturbed

Answer: High-speed power tools generate enormous quantities of fine airborne dust and are prohibited on asbestos-containing materials. Hand tools and wet methods are used instead.

An asbestos-containing material is in good condition and will not be disturbed by your work. What is normally the correct action?

• ABreak off a small sample and send it away for testing
• BSeal it yourself with ordinary paint before continuing
• CRemove it as a precaution before starting the rest of the work
• DLeave it alone and carry on✓

Answer: Undisturbed material in good condition is usually safest left in place and managed. Removing or sampling it yourself creates the exposure you are trying to avoid.

Why is it dangerous to take a sample of suspected asbestos yourself?

• ABecause only the police are legally permitted to take asbestos samples
• BSampling disturbs the material and releases fibres✓
• CBecause sampling may only be carried out outside normal working hours
• DBecause samples are almost always destroyed in transit to the laboratory

Answer: Sampling is itself a disturbance and must be done by a competent person with the right controls. Awareness training explicitly does not qualify you to sample.