USCG Exam Practice · Rule 7 — Risk of Collision
Under the Inland Navigation Rules, when must a vessel treat risk of collision as existing?
- AOnly when a steady compass bearing is confirmed over multiple observations
- BWhenever there is any doubt as to whether risk of collision exists✓ correct
- COnly when the other vessel is within one mile
- DOnly when radar confirms a closing range
Why B is correct
33 CFR §83.07(a) states that every vessel shall use all available means to determine if risk of collision exists, and if there is any doubt, such risk shall be deemed to exist. The rule imposes a conservative standard — doubt alone triggers the presumption of risk.
Cited:33 CFR §83.07
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