MGPS 400 kPa — FRCA Primary MCQ
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Correct answer: E — 400 kPa
Medical gas pipelines deliver gases at 400 kPa (4 bar / 60 psi) via the MGPS to terminal outlets throughout the hospital. Vacuum (suction) is supplied at approximately -53 kPa (400 mmHg below atmospheric). AGSS (anaesthetic gas scavenging) operates at -0.5 kPa (very low negative pressure).
Reference: Al-Shaikh Stacey 2019 Essentials of Anaesthetic Equipment