Question 2 GLI01 - Master-Unlimited Tonnage

The Correct Answer is A **Explanation for Option A (flashing blue light):** In most regulatory contexts, including U.S. inland navigation rules (often based on the Inland Navigational Rules Act of 1980), a flashing blue light is the distinctive signal authorized for use by law enforcement vessels when engaged in enforcement duties. This light helps identify the vessel as a government vessel performing patrol or enforcement functions. **Explanation of Incorrect Options:** * **B) flashing amber light:** An amber (or yellow) flashing light is typically designated for specific purposes such as dredging, towing operations, or special purpose vessels, but it is not the standard distinguishing light for law enforcement patrol boats. * **C) blue flag:** Flags are primarily used for signaling specific conditions (like a diver down flag or quarantine flag) or for dressing ship. There is no standard navigational rule designating a plain blue flag as the required signal for a law enforcement vessel while underway. * **D) flashing red light:** A flashing red light is most commonly associated with emergency vessels (like fireboats or ambulances) in some jurisdictions, or it may be used to indicate a vessel restricted in its ability to maneuver in certain specialized circumstances, but it is not the designated distinctive light for law enforcement patrol boats under standard inland rules.