🔍 Key Concepts

• GMDSS (Global Maritime Distress and Safety System) equipment carriage requirements depend on ship type and gross tonnage • Difference between EPIRBs/SARTs and any references to "SCT units" in exam wording • Which ships (passenger vs. cargo, and which tonnage brackets) trigger the higher GMDSS fit under SOLAS

💭 Think About

• First, sort the options by which ships they apply to: cargo 300–500 GT, cargo 500 GT and up, and passenger ships regardless of tonnage. Which group has the most stringent GMDSS requirements? • Ask yourself: under SOLAS/GMDSS, do small cargo ships (300–500 GT) have exactly the same survival craft radio requirements as large cargo ships and passenger ships? • Check whether the number and location of radar transponders (SARTs) is tied to ship sides / survival craft or simply to a minimum number per vessel or per group of survival craft.

✅ Before You Answer

• Verify in SOLAS Chapter IV (Radio communications) and Chapter III (Life-saving appliances) which ships must comply with full GMDSS radio fit (passenger, cargo ≥300 GT, cargo ≥500 GT) • Check if the rule speaks about SARTs (Search and Rescue Transponders) specifically and whether it mentions any equipment type resembling "SCT units" or if that is a distractor term • Confirm whether the minimum required number of SARTs is two per ship or varies with ship type/tonnage in the options given