Question 371 Deck Safety

The correct answer is C) will be coming to periscope depth. The yellow signal floating in the air from a parachute, about 300 feet above the water, indicates that a submarine is coming to periscope depth. This is a standard signaling procedure used by submarines to indicate their presence and location to surface ships. The yellow parachute signal is used to alert other vessels that the submarine is about to surface or come up to periscope depth, allowing the submarine to conduct visual surveillance or communication without fully surfacing. The other answer choices are incorrect because they do not accurately represent the meaning of the yellow parachute signal. The submarine is not necessarily in distress (option A), nor is it indicating that it is on the bottom (option D). Option B, "will be coming to the surface," is also incorrect, as the yellow parachute signal specifically indicates the submarine is coming to periscope depth, not fully surfacing.