Question 2 ONC05 - Master or Mate of LT 200 GRT

The Correct Answer is A **Why Option A ("flashing blue light") is correct:** Under Inland Navigation Rules (Inland Only), a law enforcement vessel is authorized to display an intermittently flashing blue light when engaged in law enforcement duties. This specific signal is reserved for official law enforcement vessels to indicate their status and intent. **Why the other options are incorrect:** * **B) flashing amber light:** A flashing amber (yellow) light is typically used in Inland waters to indicate a dredge or vessel restricted in its ability to maneuver (like a tow pushing ahead or alongside), or potentially by certain commercial fishing operations. It is not the designated signal for law enforcement activity. * **C) blue flag:** A blue flag (or "blue shape") is used in the maritime industry, particularly on commercial vessels, to indicate that workers are aloft or over the side, signifying that the vessel should not be moved or that machinery should not be turned on. It has no association with law enforcement duties. * **D) flashing red light:** A flashing red light is generally associated with emergency situations not directly involving law enforcement action (e.g., vessels dealing with a hazardous condition), or it may be used by vessels engaged in hydrographic surveys or by aircraft in certain circumstances. The dedicated and standardized light signal for law enforcement vessels is the flashing blue light.