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USCG Exam Practice · Rule 35 — Sound Signals in Restricted Visibility

A pushing vessel and a vessel being pushed ahead are rigidly connected in a composite unit and are navigating in restricted visibility while making way. Which fog signal applies to this composite unit?

  1. AOne prolonged followed by two short blasts at intervals of not more than 2 minutes, because the pushing vessel is engaged in towing
  2. BOne prolonged blast at intervals of not more than 2 minutes, because the composite unit is treated as a power-driven vessel making way✓ correct
  3. COne prolonged followed by three short blasts at intervals of not more than 2 minutes, because the pushed vessel sounds the tow signal
  4. DTwo prolonged blasts at intervals of not more than 2 minutes, because the composite unit is underway but not making way

Why B is correct

33 CFR §83.35(f) states that when a pushing vessel and a vessel being pushed ahead are rigidly connected in a composite unit, they shall be regarded as a power-driven vessel and shall give the signals prescribed in §83.35(a) or (b). Since the unit is making way, §83.35(a) applies: one prolonged blast at intervals of not more than 2 minutes.

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A pushing vessel and a vessel being pushed ahead are rigidly connec… — USCG Exam Practice · CaptainsGround