🔍 Key Concepts

• Rule 27 – Vessels Not Under Command or Restricted in Their Ability to Maneuver (Navigation Rules) • Day shapes for vessels restricted in their ability to maneuver (RAM) and special operations like dredging, cable laying, mineclearance • Difference between color (red vs black) and shape (ball vs diamond) in day signals

💭 Think About

• Is a vessel picking up a submarine cable considered restricted in her ability to maneuver? If so, what is the standard day shape signal for RAM vessels? • Think about the typical three-shape vertical signal used for restricted vessels: what are the shapes from top to bottom, and what are their colors? • Compare each answer choice to the standard RAM signal and ask: which one matches exactly in both shape sequence and color?

✅ Before You Answer

• Verify in Rule 27 what day shapes are prescribed for a vessel restricted in her ability to maneuver during the day. • Check carefully the color of the balls and diamond in each choice – RAM signals use a specific color only. • Confirm whether the diamond in the middle is the correct shape for RAM, and that the same color is used for all shapes in the correct pattern.