USCG Exam PracticeGPS and electronic navigation
Under 33 CFR §164.11, which factors must the person directing movement of the vessel consider when setting vessel speed? Select the answer that lists only factors expressly required by the regulation.
- ✓ Prevailing visibility, proximity to fixed structures, underkeel clearance, channel proportions, traffic density, wake damage potential, current strength and direction, and any local speed limitCorrect
- B. Prevailing visibility, fuel economy, underkeel clearance, channel proportions, traffic density, and any local speed limit
- C. Prevailing visibility, proximity to fixed structures, underkeel clearance, channel proportions, traffic density, and tidal range only
- D. Current strength and direction, wake damage potential, traffic density, and the vessel's maximum rated speed
Why A is correct
33 CFR §164.11(p)(1)–(8) enumerates exactly eight speed-setting factors: visibility and weather, proximity to fixed shore and marine structures, squat and underkeel clearance, channel proportions, traffic density, wake damage, current strength and direction, and any local speed limit. Options B, C, and D each omit one or more required factors or substitute factors not listed in the regulation.
Cited:33 CFR §164.11