Exams / HS&E HAPS / Pressure systems / Question 1
HS&E HAPS practice question: Pressure systems (1 of 5) E. Specialist: HVACR – heating and plumbing services A free question from our original HS&E HAPS 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 heating system uses pressurised hot water.
When does HSE say pressurised hot water is covered by the Pressure Systems Safety Regulations?
Choose one answer.
A A. Above 40°C, like a warm bathB B. Above 60°C, the storage temperatureC C. Never, as water can't store energyD D. Above 110°CShow the answer and explanation Answer: D
A. Wrong: Wrong. The threshold is 110°C.B. Wrong: Wrong. The threshold is 110°C.C. Wrong: Wrong. Pressurised hot water above 110°C is covered.D. Right: Right. HSE says PSSR covers pressurised hot water above 110°C, as well as steam at any pressure.Explanation PSSR covers steam at any pressure and pressurised hot water above 110°C.
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