USCG Exam Practice · Rule 7 — Risk of Collision
Under the Inland Navigation Rules, which of the following is a required use of radar equipment when it is fitted and operational?
- ARadar shall be used only in restricted visibility.
- BRadar shall be used for long-range scanning to obtain early warning of risk of collision.✓ correct
- CRadar use is discretionary and based on the master's judgment.
- DRadar shall be used only when the vessel is underway and making way.
Why B is correct
33 CFR §83.07(b) requires that proper use be made of radar equipment if fitted and operational, including long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation. Its use is not limited to restricted visibility.
Cited:33 CFR §83.07
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