🔍 Key Concepts

• Navigation Rules Rule 24 – Towing and Pushing (day shape for a long tow) • Navigation Rules Rule 26 – Fishing vessels (extra shapes for gear extending more than 150 m) • Navigation Rules Rule 27 – Vessels restricted in their ability to maneuver (RAM), including dredging and underwater operations

💭 Think About

• Look separately at the single diamond on the left and the ball–diamond–ball on the right. Which one is the actual day shape used by one of the answer choices? • Which type of vessel is generally classified as restricted in her ability to maneuver, and which is just doing ordinary towing or fishing? • For a dredge or underwater work, what shape pattern indicates general restriction versus what pattern indicates which side is obstructed?

✅ Before You Answer

• Identify which answer choice corresponds to a single diamond day shape per Rule 24. • Identify which answer choices involve a vessel that is restricted in her ability to maneuver under Rule 27 and would therefore display ball–diamond–ball. • Verify whether the day shape for a vessel with gear or tow extending a specific distance is a single shape or a combination of shapes plus a flag.