Question 389 Deck Safety

70% to pass

An airplane should NOT send which signal in reply to a surface craft?

A Opening and closing the throttle
B Rocking the wings
C Flashing Morse T
D Flashing the navigational lights off and on
AI Explanation

The correct answer is A) Opening and closing the throttle. An airplane should not send this signal in reply to a surface craft because it could be misinterpreted as an emergency signal. The proper signals for an airplane to use in communication with a surface craft are rocking the wings (B), flashing Morse code T (C), or flashing the navigational lights off and on (D). These visual signals are the standard methods for an airplane to communicate with a surface vessel and do not risk being confused with an emergency transmission.

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