Question 956 Deck General

The correct answer is A) A red flag. According to the U.S. Coast Guard regulations, a red flag must be displayed during the day while a vessel is bunkering (taking on fuel). This is a safety requirement to alert other vessels in the area that the bunkering operation is in progress and extra caution should be exercised. The other options are incorrect because a red and yellow flag, a yellow flag, or a red light are not the required signals for daytime bunkering operations. The red flag is the specific signal mandated by Coast Guard regulations for this purpose.