USCG Exam Practice · Danger bearings and danger circles
While transiting in restricted visibility, your vessel detects another vessel by radar only. You determine a close-quarters situation is developing. The contact is bearing 045° relative (forward of the beam). Which action is specifically prohibited by the Navigation Rules when altering course to avoid?
- AAn alteration of course to port✓ correct
- BAn alteration of course to starboard
- CA reduction in speed combined with a course alteration to starboard
- DTaking all way off and navigating with extreme caution
Why A is correct
33 CFR §83.19(d)(i) specifically states that when taking avoiding action for a vessel detected by radar forward of the beam, an alteration of course to port shall so far as possible be avoided. An alteration to starboard is not prohibited by this provision.
Cited:33 CFR §83.19
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