🔍 Key Concepts

• Emergency switchboard / emergency bus function on SOLAS vessels • Difference between automatic transfer of power and simple physical bus connections • What device senses loss of normal power and connects the emergency source

💭 Think About

• Which option actually acts when normal power fails, without requiring manual operation? • Which choice sounds like a control or switching device, versus just a cable or bus connection? • On a SOLAS vessel, what is expected to happen automatically when the main switchboard power is lost?

✅ Before You Answer

• Identify which term is associated with automatic transfer between normal and emergency power sources • Eliminate options that are only conductors or bus sections, not switching/control devices • Think about which device must be able to sense loss of voltage and respond without crew action