USCG Exam Practice · Single-screw maneuvering and prop walk
According to 33 CFR §164.11, the person directing the movement of a vessel must set speed with consideration for which of the following factors?
- AThe vessel's insurance classification and port authority speed limits only
- BPrevailing visibility, proximity to structures, underkeel clearance, channel proportions, traffic density, wake damage, current, and any local speed limit✓ correct
- CCurrent direction and density of traffic only, as all other factors are addressed by the Rules of the Road
- DWake damage potential and local speed limits only, provided the vessel is operating in daylight
Why B is correct
33 CFR §164.11(p)(1)–(8) enumerates all eight factors the conning officer must consider when setting speed: visibility and weather, proximity to structures, squat and underkeel clearance, channel proportions, traffic density, wake damage, current strength and direction, and any local speed limit. No single subset is sufficient.
Cited:33 CFR §164.11
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