BOTH INTERNATIONAL & INLAND What do the...

🔍 Key Concepts

• Review Rule 24 – Towing and Pushing and note how many white masthead lights are shown for different tow lengths. • Compare with Rule 26 – Fishing Vessels (trawling vs. other fishing) and the color pattern of their all-round lights. • Check Rule 27 – Vessels Restricted in Their Ability to Manoeuvre and special operation vessels (like dredging or cable-laying) and note the typical red/green patterns used.

💭 Think About

• Look at the vertical stack of four white lights: which type of vessel is defined in the Rules as showing multiple white masthead or all‑round lights in a straight vertical line? • Ask yourself: which of the options would normally use colored (red/green) special lights rather than just a tall string of white ones? • Think about tow length: when does a tug add extra white masthead lights, and how might that relate to seeing four whites in a row plus sidelights?.

✅ Before You Answer

• Verify the color sequence required for fishing, dredging, and cable‑laying vessels (they are not all plain white). • Confirm in Rule 24 how many masthead lights are shown for towing astern with a long tow and how they are arranged. • Before choosing, be sure whether the illustration is showing masthead lights of a power‑driven/towing vessel or all‑round specialty lights of a restricted‑ability vessel.

BOTH INTERNATIONAL & INLAND What do the lights displayed in illustration D073RR indicate?

vessel towing astern

vessel laying submarine cable

fishing vessel trolling

vessel dredging

🔍 Key Concepts

💭 Think About

✅ Before You Answer