Which term describes a lighting pattern that flashes only once per cycle?

Which term describes a lighting pattern that flashes only once per cycle?

• A. Look out
• B. Quick Flashing
• C. Single flashing
• D. Safe speed

Answer: (C)

Lighting patterns describe how navigation lights flash during one complete cycle. A pattern that flashes only once per cycle is described as single flashing. This term precisely communicates that there is a single emission per cycle, followed by a longer dark interval before the next cycle starts. The other terms do not describe a one-flash-per-cycle pattern: quick flashing would indicate multiple rapid flashes within a cycle, while look out and safe speed refer to other signals or operating instructions, not to the flashing pattern of a navigation light.

Lighting patterns describe how navigation lights flash during one complete cycle. A pattern that flashes only once per cycle is described as single flashing. This term precisely communicates that there is a single emission per cycle, followed by a longer dark interval before the next cycle starts. The other terms do not describe a one-flash-per-cycle pattern: quick flashing would indicate multiple rapid flashes within a cycle, while look out and safe speed refer to other signals or operating instructions, not to the flashing pattern of a navigation light.