Question 64 GLI05 - Master or Mate of LT 200 GRT

The Correct Answer is D **Explanation for Option D (A red flag) being correct:** International maritime regulations and standard safe operating procedures for bunkering (fueling or receiving oil products) require specific visual signals to be displayed to indicate that the operation is in progress, hazards exist, and vessels should keep clear. During daylight hours, the recognized signal for this operation is the display of a **red flag**. This signal indicates that the vessel is engaged in the transfer of dangerous goods (oil/fuel), and typically signifies that no naked lights or smoking are permitted near the bunkering area, and other vessels should pass with caution and minimize wake. **Explanation for why the other options are incorrect:** * **A) A red light:** A red **light** is the internationally recognized signal for displaying distress or danger *at night*. While bunkering is dangerous, during the day, the visual signal used is a physical flag, not a light. * **B) A red and yellow flag:** There is no standard international signal that uses a red and yellow flag specifically for bunkering operations. A red and yellow flag (or sometimes a combination of flags) might be used for diving operations or quarantine signals, but not for daytime bunkering transfer procedures. * **C) A yellow flag:** A solid yellow flag is typically the "Q" flag (Quarantine flag) in the International Code of Signals. This flag indicates that the vessel is requesting free pratique (permission to enter port) or that it believes it is free from disease. It is not the signal used for indicating ongoing bunkering operations.