USCG Exam Practice · Leeway allowance in plotting
When a vessel is required to cross traffic lanes in a traffic separation scheme, she shall cross on a heading as nearly as practicable at what angle to the general direction of traffic flow?
- A45 degrees
- B60 degrees
- CRight angles (90 degrees)✓ correct
- DAs small an angle as practicable
Why C is correct
33 CFR §83.10(c) states that when a vessel is obliged to cross traffic lanes, she shall cross on a heading as nearly as practicable at right angles to the general direction of traffic flow. The small-angle requirement applies to joining or leaving a lane, not crossing.
Cited:33 CFR §83.10
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