Class I Electrical Equipment — FRCA Primary MCQ
Instant feedback + full explanation. One question, done properly.
Educational content. Not a substitute for clinical judgement or local policy.
Reveal the answer and explanation
Correct answer: A — Basic insulation plus a protective earth connection
Class I has basic insulation plus protective earth. If insulation fails current flows to earth via the low-resistance wire tripping the circuit breaker. Class II is double-insulated without earth. Class III uses safety extra-low voltage.
Reference: Al-Shaikh Stacey 2019 Essentials of Anaesthetic Equipment