USCG Exam Practice · Anchoring — types, scope, holding ground
According to the Inland Navigation Rules, a vessel of 100 meters or more in length that is at anchor shall do which of the following in addition to displaying anchor lights?
- ASound a bell every minute
- BDisplay three balls in a vertical line
- CUse available working or equivalent lights to illuminate her decks✓ correct
- DDisplay two all-round red lights in a vertical line
Why C is correct
33 CFR §83.30(c) states that a vessel of 100 meters or more in length shall use available working or equivalent lights to illuminate her decks while at anchor. Deck illumination is mandatory for vessels of that size; smaller vessels may do so but are not required to. Two all-round red lights in a vertical line are required for a vessel aground, not merely at anchor.
Cited:33 CFR §83.30(c)
Drill more Anchoring — types, scope, holding ground questions
Every CaptainsGround answer cites the rule it tests — verified, not guessed. Try a free 5-question drill, no sign-up.
More practice questions
- According to the Inland Navigation Rules, a vessel aground shall exhibit, in addition t…
- Under 33 CFR §164.19, which action is specifically listed as an appropriate response wh…
- Under 33 CFR §83.30, which category of vessel at anchor is required to illuminate her d…
- According to the Boatswain's Manual, what scope ratio is recommended when anchoring in …
- A nonmetallic hull vessel is required to carry a radar reflector under 46 CFR §28.235 U…
- A moored barge reduces the available navigable width of a channel to 75 meters. Under 3…