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Exams / HS&E TUNN / Air, gases and confined spaces / Question 5

HS&E TUNN practice question: Air, gases and confined spaces (5 of 6)

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.

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A new starter says the main tunnel is too big to count as a confined space.

What does HSE say about size?

Choose one answer.

  1. A. Only spaces less than 2 metres high count
  2. B. Only spaces with one way in count
  3. C. It can be small or very large
  4. D. Only spaces you have to crawl into count
Show the answer and explanation

Answer: C

  • A. Wrong: Wrong. There is no size limit.
  • B. Wrong: Wrong. HSE doesn't define it that way.
  • C. Right: Right. HSE says a confined space may be small or very large. What matters is that it is enclosed and has a foreseeable specified risk.
  • D. Wrong: Wrong. Size doesn't decide it.

Explanation

A confined space can be any size. It is enclosed and has a foreseeable risk such as bad air, fire or flooding.

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