Which signaling device is commonly used for night signaling on small craft?

• A. Lifebuoy
• B. PFD
• C. Whistle
• D. Flare

Answer: (D)

When signaling at night, a bright, visible signal is essential to attract attention across distances and through darkness. A flare accomplishes this by producing a very intense light that can be seen from far away, even in rough seas or fog. It’s specifically designed for night signaling and is a staple of visual distress signals on small craft. Lifebuoys and PFDs are safety equipment, not signaling devices, and a whistle provides an audible signal that’s difficult to rely on at night and from long range. So a flare is the best choice for night signaling on small craft.