BOTH INTERNATIONAL & INLAND Which vessel...

🔍 Key Concepts

• Masthead light definition under Rule 21 and when it is required for power-driven vessels under Rule 23 • Lighting requirements for sailing vessels underway (Rule 25) and whether they carry masthead lights • Special lighting for vessels engaged in fishing (Rule 26) and how it differs from normal power-driven lights

💭 Think About

• For each choice, ask: is this vessel being treated as power-driven, sailing, or engaged in fishing for its primary light configuration? • Consider the length thresholds: at what length does a power-driven vessel have to show two masthead lights (forward and after) instead of just one? • When a vessel is "engaged in fishing," does it normally show the standard masthead lights of a power-driven vessel, or a different set of lights?

✅ Before You Answer

• Verify in Rule 23 whether a 50-meter power-driven vessel underway must show one or two masthead lights and how they are arranged • Check in Rule 25 if a sailing vessel underway is required to display any masthead lights (and under what conditions, if any) • Check in Rule 26 whether a vessel engaged in fishing displays masthead lights as part of its required fishing light signal or a different combination instead

BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after masthead lights when underway?

A 200-meter sailing vessel

A 50-meter power-driven vessel

A 100-meter vessel engaged in fishing

All of the above

🔍 Key Concepts

💭 Think About

✅ Before You Answer