🔍 Key Concepts

• Grounding of electrical systems on vessels • Purpose of ground fault protection in preventing dangerous current paths • Risks of electric shock in a damp/marine environment

💭 Think About

• Think about what happens if a live wire inside an appliance touches the metal case in a wet marine environment—who or what is at risk? • Which choice best describes a safety function rather than convenience or performance? • On a rolling vessel, which type of hazard from an electrical appliance is most serious and directly related to grounding and fault protection?

✅ Before You Answer

• Identify which option directly addresses human safety from electrical current. • Eliminate any choices that deal only with mechanical stability or performance/efficiency. • Focus on the purpose of ground fault interrupters (GFIs/GFCIs): what kind of injury or danger are they designed to prevent?