USCG Exam PracticeRule 7 — Risk of Collision
The Inland Navigation Rules require that proper use shall be made of radar equipment if fitted and operational. Which of the following actions is specifically required by Rule 7?
- A. Radar shall be used only when visibility drops below one nautical mile
- ✓ Long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observationCorrect
- C. A dedicated radar watch officer shall be posted whenever radar is in use
- D. Radar ranges shall be used instead of compass bearings to assess collision risk
Why B is correct
33 CFR §83.07(b) requires proper use of radar including long-range scanning for early warning and radar plotting or equivalent systematic observation of detected objects. The rule does not specify a visibility threshold for radar use or require a dedicated watch officer.
Cited:33 CFR §83.07