BOTH INTERNATIONAL & INLAND By night, you...

BOTH INTERNATIONAL & INLAND By night, you...

Question 1 of 2707066636eeb28f7522a1c51bb30

BOTH INTERNATIONAL & INLAND By night, you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel, how will it be marked?

Question 1 of 27070

Q

BOTH INTERNATIONAL & INLAND By night, you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel, how will it be marked?

🔍 Key Concepts

• Rule 27 - Vessels Not Under Command or Restricted in Their Ability to Maneuver • Shapes and lights for vessels engaged in underwater operations or dredging • How safe side vs. obstructed side are marked at night

💭 Think About

• Think about how a vessel doing dredging or underwater work shows which side you should safely pass on. What color combination marks the safe side, and what marks the obstructed side? • Ask yourself: when navigation is restricted, which color is generally associated with danger or an area you should avoid? • Consider whether a single light is usually enough to mark a serious obstruction, or if the Rules normally call for multiple lights in a specific pattern.

✅ Before You Answer

• Verify in Rule 27 how the obstructed side of a vessel engaged in underwater operations is marked at night. • Check whether the Rule specifies one light or two lights in a vertical line for the obstruction side. • Confirm that white floodlights or "any visible lights" are NOT the standard method for marking restricted areas under the Navigation Rules.