USCG Exam PracticeRule 35 — Sound Signals in Restricted Visibility
A vessel at anchor in restricted visibility wishes to warn an approaching vessel of her position and the possibility of collision. In addition to her required bell signal, she MAY optionally sound which whistle signal?
- ✓ One short blast, one prolonged blast, and one short blastCorrect
- B. One prolonged blast followed by two short blasts
- C. Five short and rapid blasts
- D. One prolonged blast
Why A is correct
33 CFR §83.35(g) states that a vessel at anchor may in addition sound three blasts in succession — one short, one prolonged, and one short blast — to warn an approaching vessel. This optional signal is distinct from the mandatory bell signal and from the fog signals used by underway vessels.
Cited:33 CFR §83.35(g)