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USCG Exam Practice · Rule 27 — NUC and RAM (lights)

A vessel engaged in dredging operations is restricted in her ability to maneuver, and an obstruction exists on her port side. Which lights does she display on the obstruction side at night?

  1. ATwo all-round green lights in a vertical line
  2. BTwo all-round red lights in a vertical line✓ correct
  3. COne all-round red light and one all-round white light in a vertical line
  4. DTwo all-round white lights in a vertical line

Why B is correct

33 CFR §83.27(d)(i) requires two all-round red lights in a vertical line on the side where the obstruction exists. Two all-round green lights in a vertical line are shown on the side where another vessel may pass, per §83.27(d)(ii).

Cited:33 CFR §83.27(d)(i)33 CFR §83.27(d)(ii)

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