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HS&E RAAC practice question: Electrical isolation (4 of 5)

E. Specialist: HVACR – refrigeration and air conditioning A free question from our original HS&E RAAC practice exam. Try it, then open the answer to see why each option is right or wrong.

Last verified against HSE guidance and the law ·How we write our questions

An apprentice asks if they can wire up a new condensing unit on their own.

What does HSE say?

Choose one answer.

  1. A. Anyone, if the client agrees
  2. B. Only trained, competent people
  3. C. Anyone, if they follow the wiring diagram on the lid
  4. D. Anyone over 18 can do it
Show the answer and explanation

Answer: B

  • A. Wrong: Wrong. Electrical work needs training and competence.
  • B. Right: Right. HSE says electrical work should only be done by those who are trained and competent to do it.
  • C. Wrong: Wrong. Electrical work needs training and competence.
  • D. Wrong: Wrong. Age is not competence.

Explanation

Electrical work must only be done by trained, competent people.

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