CSCS Card Health, Safety and Environment Test · Hazardous substances

COSHH, dusts, chemicals and asbestos

33 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 33 questions

  1. Which regulations require employers to assess and control exposure to substances hazardous to health?
  2. Where do you find detailed information on the hazards of a chemical product, including first aid measures?
  3. What does a hazard pictogram of a flame over a circle show?
  4. What does the corrosion pictogram, showing liquid dripping onto a hand and a surface, warn about?
  5. Which pictogram warns that a substance is acutely toxic and can be fatal?
  6. An exclamation mark in a red-bordered diamond on a product label means
  7. What should you do before using a hazardous substance that you have not used before?
  8. Why must chemicals be kept in their original labelled containers?
  9. Mixing bleach with an acid-based descaler is dangerous because it
  10. What is the safest first action if a chemical splashes onto your skin?
  11. Wet cement is hazardous because it is
  12. Which condition is a typical effect of repeated skin contact with cement or solvents?
  13. Which of the following causes silicosis?
  14. What is the best way to control dust when cutting paving slabs with a saw?
  15. An old ceiling tile is found to contain what looks like asbestos. What should you do?
  16. Which disease is closely linked to asbestos exposure?
  17. Which regulations apply to asbestos in buildings and work with it?
  18. Before refurbishing a building built before 2000, what must be done about asbestos?
  19. Which of these is a way that leptospirosis (Weil's disease) can be caught?
  20. Why should you cover cuts with a waterproof plaster before working near water or sewers?
  21. Why is it dangerous to run a petrol generator inside a small room?
  22. What are Workplace Exposure Limits (WELs)?
  23. In the hierarchy of control for a hazardous substance, which of these comes first?
  24. A product label says 'Keep away from heat, sparks and open flames'. What kind of hazard is this?
  25. What does it mean for a substance to be a respiratory sensitiser?
  26. Why must you not eat, drink or smoke in an area where hazardous substances are in use?
  27. A tin of solvent is spilled on a concrete floor. What should be the first response?
  28. An employer must carry out health surveillance for workers under COSHH when
  29. Respirable crystalline silica has a workplace exposure limit of 0.1 mg/m³ as an 8-hour average. What is it measuring?
  30. How should a hazardous waste container with a pesticide-contaminated rag be treated?
  31. An employee shows early signs of occupational asthma after using a spray foam. What is the right response?
  32. Welding fume is hazardous because it
  33. What is the correct order of the three COSHH steps for an employer?

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