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USCG Exam PracticeRule 27 — NUC and RAM (lights)

A vessel engaged in diving operations is too small to practicably exhibit all the lights prescribed in Rule 27(d). Which combination of signals shall she exhibit instead?

  1. Three all-round lights in a vertical line (red-white-red) and a rigid replica of Code flag 'A' not less than 1 meter in height with all-round visibilityCorrect
  2. B. Two all-round red lights in a vertical line and a rigid replica of Code flag 'A' not less than 1 meter in height
  3. C. Three all-round green lights and a rigid replica of Code flag 'A' not less than 1 meter in height
  4. D. Three all-round lights in a vertical line (red-white-red) and two all-round red lights on the obstruction side

Why A is correct

33 CFR §83.27(e) provides that when a vessel engaged in diving operations is too small to display all lights under paragraph (d), she shall instead exhibit three all-round lights in a vertical line with the highest and lowest red and the middle white, plus a rigid replica of Code flag 'A' not less than 1 meter in height with all-round visibility.

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A vessel engaged in diving operations is too small to practicably e… — USCG Exam Practice · CaptainsGround