When must lights be exhibited?

When must lights be exhibited?

• A. sunrise to sunset in restricted visibility
• B. sunset to sunrise
• C. sunset to sunrise in restricted visibility
• D. never

Answer: (B)

Navigation lights are required whenever it’s dark, so they must be exhibited from sunset to sunrise. This timing ensures other vessels can see you and assess your position and actions at night. In practice, you also must show lights in restricted visibility, but the core time window expressed here is the period from sunset to sunrise. The other options either imply daylight without lights or add a restricted-visibility condition that doesn’t change the basic window, so the sunset-to-sunrise rule is the best-fit answer.

Navigation lights are required whenever it’s dark, so they must be exhibited from sunset to sunrise. This timing ensures other vessels can see you and assess your position and actions at night. In practice, you also must show lights in restricted visibility, but the core time window expressed here is the period from sunset to sunrise. The other options either imply daylight without lights or add a restricted-visibility condition that doesn’t change the basic window, so the sunset-to-sunrise rule is the best-fit answer.