BOTH INTERNATIONAL & INLAND Navigation...

Question 1 / 2707066636eeb28f7522a1c51bb1a

Question 1 of 2707066636eeb28f7522a1c51bb1a

BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all weathers from sunset to sunrise. They also __________.

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Question 1 of 27070

BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all weathers from sunset to sunrise. They also __________.

🔍 Key Concepts

• Duration of light display in Rule 20 (Application) of the Navigation Rules • The difference between when lights are required and when they are permitted • How lights relate to day shapes/day signals

💭 Think About

• Ask yourself: Besides sunset to sunrise, under what other conditions might the Rules allow (not require) lights to be shown? • Think: Are lights and day shapes alternatives to each other, or can they be used at the same time? • Consider: Is there any situation in the Rules where a vessel is told it may turn off lights just because no other traffic seems to be around?

✅ Before You Answer

• Verify in Rule 20 whether lights may be exhibited in daylight under certain conditions (e.g., reduced visibility). • Check if Rule 20 links day signals and lights as "one or the other" or allows/mentions both together. • Confirm whether the Rules ever authorize extinguishing required lights at night simply because a vessel believes no one else is nearby.

Question 1 of 27070

BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all weathers from sunset to sunrise. They also __________.

may be extinguished at night on open waters when no other vessels are in the area

may be displayed during daylight

must be displayed when day signals are being used

must be displayed when moored to a pier

Question 1 / 2707066636eeb28f7522a1c51bb1a

Question 1 of 2707066636eeb28f7522a1c51bb1a

BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all weathers from sunset to sunrise. They also __________.

Back

Question 1 of 27070

BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all weathers from sunset to sunrise. They also __________.