Question 1072 Deck General

The correct answer is D) A red light visible all around the horizon. This is the correct answer because the regulations governing tank vessels transferring flammable or combustible liquid cargo require the display of a red light visible all around the horizon. This signal indicates that the vessel is engaged in cargo transfer operations, which poses a potential fire hazard, and warns other vessels in the area to take appropriate precautions. The other answer choices are incorrect because they do not match the specific regulatory requirement for a red light signal. A flashing yellow light, a green light, or a red and yellow caution flag would not satisfy the regulatory requirement for a tank vessel engaged in cargo transfer operations.