ACS Gas Pro

This release follows a full independent audit of the question bank. NEW QUESTIONS — THE BANK IS NOW 1,260 • Meter outlet operating pressure, from IGEM/G/13: the 18.5–23 mbar acceptance range, the high-operating-load method, the one-minute stabilisation period, the 65 kW / U6 domestic capacity limit, and when a low-pressure supply has to be reported. • More IGEM/G/11 Edition 2 material: the prescribed turn-off order, the At Risk case where turning the appliance off does not remove the risk (and no DANGER DO NOT USE label is attached), RIDDOR 11(1) versus 11(2) duties and their timescales, and what to do as first person at a gas incident. STANDARDS BROUGHT UP TO DATE • References now name the editions in force — BS 6891:2015+A1:2019, BS 6172:2010+A1:2017, BS 669-1:2022, BS 5440-1:2023 and BS 5440-2:2023. • Every reference now points to a clause or section number instead of a page number, so you can find it in whichever copy of the standard you hold. CLEARER, FAIRER QUESTIONS • Reworked the answer options on 132 questions so the wording no longer hints at the right answer. The unsafe-situations questions in particular now test the classification rather than the phrasing. • Removed a duplicated opening line from 620 explanations. • Moved four diagrams that gave their answer away into the explanation, where they belong. • Corrected several source references that pointed at the wrong section. Spotted something that doesn't look right? Get in touch from the Support link on our App Store page — it genuinely helps.