USCG Exam PracticeTides and currents — predictions and corrections
A towing vessel master is planning a transit through a constricted waterway. Under 33 CFR §164.78, which of the following factors is the master NOT explicitly required to account for when proceeding at a safe speed?
- A. Possibility of wake damage
- B. Speed and direction of the current
- ✓ Water temperature and salinity gradientsCorrect
- D. Draft of the tow
Why C is correct
33 CFR §164.78(a)(7) lists the factors to be considered for safe speed as weather, visibility, density of traffic, draft of tow, possibility of wake damage, speed and direction of the current, and local speed limits. Water temperature and salinity gradients do not appear in this list.
Cited:33 CFR §164.78