USCG Exam Practice · Rule 6 — Safe Speed
At night, which factor listed under Rule 6 must all vessels consider when determining a safe speed?
- AThe effect on radar detection of the sea state and weather
- BThe presence of background light such as from shore lights or back scatter of her own lights✓ correct
- CThe more exact assessment of visibility possible when radar is used
- DThe number, location, and movement of vessels detected by radar
Why B is correct
33 CFR §83.06(a)(iv) specifically identifies the presence of background light at night, including shore lights and back scatter of the vessel's own lights, as a factor for all vessels. The other options are radar-specific factors found in §83.06(b).
Cited:33 CFR §83.06
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