USCG Exam Practice · Rule 27 — NUC and RAM (lights)
Which of the following correctly describes the daytime shape signal for a vessel restricted in her ability to maneuver (RAM)?
- AThree shapes in a vertical line: ball, diamond, ball (top to bottom)✓ correct
- BThree shapes in a vertical line: diamond, ball, diamond (top to bottom)
- CTwo balls in a vertical line
- DThree balls in a vertical line
Why A is correct
33 CFR §83.27(b)(ii) specifies three shapes in a vertical line for a RAM vessel, with the highest and lowest being balls and the middle one a diamond — ball, diamond, ball from top to bottom. Two balls is the NUC day signal; three balls is the mine clearance signal.
Cited:33 CFR §83.27
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