USCG Exam Practice · GMDSS and VHF distress procedures
According to 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 white masthead light displayed at night
- CThree short blasts on a whistle
- DAn orange flag displayed at the masthead
Why A is correct
33 CFR §87.01(p) lists a high-intensity white light flashing at regular intervals from 50 to 70 times per minute as a recognized distress signal. A steady white light, three short whistle blasts, and an orange flag at the masthead are not listed as distress signals under this section.
Cited:33 CFR §87.01
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