Exams / HS&E TUNN / Dust, noise and vibration / Question 2
HS&E TUNN practice question: Dust, noise and vibration (2 of 7) E. Specialist: Tunnelling A free question from our original HS&E TUNN practice exam. Try it, then open the answer to see why each option is right or wrong.
Last verified October 2026 against HSE guidance and the law ·How we write our questions
A miner says the air near the face looks clear, so the dust must be harmless.
What does HSE say?
Choose one answer.
A A. If you can't see dust, there is noneB B. Only coloured dust is harmfulC C. Dust only matters above groundD D. The harmful dust is too fine to see in normal lightShow the answer and explanation Answer: D
A. Wrong: Wrong. The harmful dust is invisible in normal light.B. Wrong: Wrong. Colour doesn't tell you if dust is harmful.C. Wrong: Wrong. Tunnelling creates silica dust.D. Right: Right. HSE says respirable crystalline silica is too fine to see in normal lighting.Explanation Respirable silica dust is too fine to see in normal light, so clear-looking air can still be harmful.
Study Keep practicing Answer questions with a score at the end, or practice just this topic with the explanation after each one. No sign-up needed.