Question 345 Deck Safety

70% to pass

If you desire to communicate with another station that your navigation lights were not functioning, what signal would you send?

A PD1
B PB
C MJ
D LN1
AI Explanation

The correct answer is A) PD1. The PD1 signal is used to communicate that your navigation lights are not functioning properly. This is in accordance with the International Code of Signals, which is the standard for maritime communication. The PD1 signal indicates a defect in your navigation lights, allowing you to notify other stations about the issue. The other answer choices are incorrect because they do not specifically communicate a problem with navigation lights. B) PB is a general distress signal, C) MJ indicates machinery issues, and D) LN1 does not have a defined meaning in the International Code of Signals.

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Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
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