USCG Exam Practice · Rule 19 — Conduct of Vessels in Restricted Visibility
While transiting in restricted visibility, your vessel hears a fog signal apparently forward of the beam. You have not yet been able to determine whether a risk of collision exists. Under Inland Rule 19, which statement correctly describes your obligations at this moment?
- AYou must reduce to minimum steerageway speed only if radar confirms a close-quarters situation
- BYou must reduce speed to the minimum at which the vessel can be kept on course and, if necessary, take all way off, navigating with extreme caution until danger of collision is over✓ correct
- CYou must alter course to starboard and sound the appropriate maneuvering signal
- DNo action is required until the other vessel is detected on radar and a risk of collision is confirmed
Why B is correct
33 CFR §83.19(e) is explicit: except where it has been determined that risk of collision does not exist, hearing a fog signal apparently forward of the beam obligates the vessel to reduce to minimum steerageway and, if necessary, take all way off. The Rule does not condition this duty on radar confirmation, making Options A and D incorrect. Option C imposes a course alteration not required by Rule 19(e).
Cited:33 CFR §83.19(e)
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