USCG Exam PracticeRule 7 — Risk of Collision
Your vessel is fitted with an operational radar. Under the Inland Navigation Rules, what specific use of that radar is required when assessing risk of collision?
- A. Radar shall be used only in restricted visibility; visual bearings take precedence in clear weather.
- ✓ Radar shall be used for long-range scanning and radar plotting or equivalent systematic observation.Correct
- C. Radar shall be used solely to verify compass bearings already taken visually.
- D. Radar use is discretionary; the Rules require only that it be available if needed.
Why B is correct
33 CFR §83.07(b) requires proper use of radar if fitted and operational, including long-range scanning for early warning and radar plotting or equivalent systematic observation of detected objects. Use is mandatory, not discretionary, when the equipment is fitted and operational.
Cited:33 CFR §83.07