BOTH INTERNATIONAL & INLAND You are underway...

🔍 Key Concepts

• Rule 5 – Look-out: Requirements for maintaining a proper look-out by sight and hearing as well as by all available means • Rule 6 – Safe Speed: Factors for determining safe speed in restricted visibility, including radar use and maneuverability • Rule 19 – Conduct of vessels in restricted visibility: Actions required when you have not yet determined risk of collision

💭 Think About

• Ask yourself what the Rules say you MUST do at all times in or near areas of restricted visibility, even before you know if risk of collision exists • Consider whether radar use changes or replaces any other obligations, such as posting a look-out or sounding signals • Think about whether the Rules require a specific exact speed in fog, or if they require you to evaluate several factors to determine a safe speed

✅ Before You Answer

• Verify what Rule 5 says about the look-out requirement and whether radar can substitute for it • Check Rule 6 to see if it mandates a particular speed (like bare steerageway) in fog, or if it gives factors to consider instead • Confirm from the sound signal rules in restricted visibility whether fog signals depend on radar detection or on your vessel’s status (underway, making way, stopped, etc.)

BOTH INTERNATIONAL & INLAND You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?

Fog signals are only required when a vessel is detected by radar.

The radar should always be kept on a short-range scale.

A look-out is not required if the radar is on.

Your speed must be reduced to bare steerageway.

🔍 Key Concepts

💭 Think About

✅ Before You Answer