In fog, navigation is aided by using which combination?

• A. Compass, chart, sound signals
• B. Sunglasses, sunscreen, hat
• C. Radar, GPS, phone
• D. Map, flashlight, seeds

Answer: (A)

Fog makes sight unreliable, so navigation relies on non-visual tools and clear communication. A compass, a chart, and sound signals form the best trio because you can stay on a known bearing, understand your position and safe route relative to coastlines and hazards, and alert other vessels to your presence and movements without needing to see them. The compass keeps you on course when landmarks aren’t visible; the chart helps you plan and verify your track, especially by dead reckoning; and sound signals help prevent collisions in limited visibility. The other options either don’t aid navigation in fog (sunglasses, sunscreen, hat), rely on electronics that may fail or aren’t sufficient on their own (radar, GPS, phone), or include unrelated items (map, flashlight, seeds) that don’t support safe fog navigation.