Exams / HS&E TUNN / Dust, noise and vibration / Question 6
HS&E TUNN practice question: Dust, noise and vibration (6 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
You are planning how to control silica dust from cutting concrete segments in a tunnel.
What comes first?
Choose one answer.
A A. Rely only on dust masks, changed every shiftB B. Sweep the dust up dryC C. Do nothing, as the tunnel is ventilatedD D. Control it at source, e.g. with waterShow the answer and explanation Answer: D
A. Wrong: Wrong. RPE comes after controlling the dust at source.B. Wrong: Wrong. Dry sweeping stirs dust into the air.C. Wrong: Wrong. Ventilation alone isn't enough.D. Right: Right. HSE says control dust at source first, for example with water suppression or extraction, and use RPE as well where needed.Explanation Control silica dust at source with water or extraction, then use fit-tested RPE where needed.
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