🔍 Key Concepts

• GMDSS (Global Maritime Distress and Safety System) power requirements under SOLAS • Difference between main, emergency, and reserve power for radio installations • The specific term used for the backup energy required when both main and emergency sources fail

💭 Think About

• Ask yourself: Which option is a generic functional term from GMDSS/SOLAS, and which options are specific pieces of equipment? • Think: If the main and emergency sources of energy are gone, what does SOLAS/Radio Regs call the special backup supply dedicated to communication equipment? • Consider: Does GMDSS require a particular named generator, or a more general type of energy source that could be batteries or other means?

✅ Before You Answer

• Verify which term is used in GMDSS rules to describe the backup power dedicated to radio/GMDSS equipment when other ship power fails • Check which answers name specific generators versus a more general regulatory term • Confirm that the correct choice matches the wording: "source of energy required to supply the GMDSS console with power if the ship's source of main or emergency energy fails"