USCG Exam Practice · GMDSS and VHF distress procedures
Under 33 CFR §87.01, which of the following is a recognized distress signal?
- AA high-intensity white light flashing at 50 to 70 times per minute✓ correct
- BA steady red light displayed from the masthead
- CA blue flag hoisted at the stern
- DA horn signal of one prolonged and two short blasts
Why A is correct
33 CFR §87.01(p) specifically lists a high-intensity white light flashing at regular intervals from 50 to 70 times per minute as a recognized distress signal. The other options are not listed among the recognized distress signals in §87.01.
Cited:33 CFR §87.01
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