USCG Exam Practice · Rule 28 — Constrained by Draft (lights)
By day, a vessel restricted in her ability to maneuver shall exhibit which shapes in a vertical line?
- AThree balls equally spaced
- BTwo balls with a diamond between them
- CBall, diamond, ball (highest and lowest are balls, middle is a diamond)✓ correct
- DDiamond, ball, diamond (highest and lowest are diamonds, middle is a ball)
Why C is correct
33 CFR §83.27(b)(ii) specifies three shapes in a vertical line where the highest and lowest shall be balls and the middle one a diamond — mirroring the red-white-red light pattern used at night.
Cited:33 CFR §83.27
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