🔍 Key Concepts

• Rule 27 - Vessels Not Under Command or Restricted in Their Ability to Maneuver (Navigation Rules) • Special signals and shapes for mineclearing operations versus ordinary restricted-maneuverability vessels • The difference between balls, diamonds, and their positions on the vessel

💭 Think About

• First recall what day-shapes a normal restricted-in-ability-to-maneuver vessel shows; then consider how mineclearing operations are marked differently to warn other vessels to keep clear of the ship’s sides. • Look carefully at which choice includes an indication of the area that must be avoided (danger area extending from the vessel) rather than just a simple vertical line of shapes. • Ask yourself: which arrangement would most clearly warn other mariners not to pass close alongside either side of the vessel engaged in mineclearance?

✅ Before You Answer

• Verify in Rule 27 that mineclearing operations have a special configuration that is not simply a vertical line of shapes. • Check which option shows shapes at the foremast head and each fore yard (out to the sides), indicating danger on both sides of the vessel. • Confirm which shapes (ball vs diamond) are typically used to indicate obstruction/danger zones around a vessel engaged in special operations.