Question 366 Deck Safety

The correct answer is A) is about to rise to periscope depth. A yellow signal floating in the air from a small parachute is a visual distress signal used by submarines to indicate their presence and status. When a submarine is about to rise to periscope depth, they may deploy this signal to alert surface vessels of their imminent surfacing. This allows other vessels to clear the area and avoid a potential collision. The other answer choices are incorrect because B) indicates a torpedo drill, which would not use a visual distress signal, C) describes a disabled submarine unable to surface, and D) describes a submarine on the bottom in distress, neither of which are accurately represented by the yellow parachute signal.