Question 42

The Correct Answer is C ### Explanation for C (Correct) **C) Any means of making an efficient sound signal** is correct because it aligns with the requirements set forth in the **International Regulations for Preventing Collisions at Sea, 1972 (COLREGs), Annex III, Section 2.** For vessels less than 12 meters in length (which includes a vessel 10 meters in length): * **Rule 33 (Equipment for Sound Signals)** requires that a vessel be provided with a whistle, bell, and gong **if** the vessel is 12 meters or more in length. * However, Annex III, Section 2 states: "The equipment specified in Rule 33(1) [whistle and bell] is not mandatory for a vessel of less than 12 meters in length. **A vessel of less than 12 meters in length shall not be obliged to carry the sound signaling appliances prescribed in paragraph 1 of this section but if she does not carry them, she shall be provided with some other means of making an efficient sound signal.**" Therefore, the minimum requirement for a 10-meter vessel is merely the ability to make an "efficient sound signal," which could be a portable air horn, a loud whistle, etc., rather than fixed regulatory equipment like a ship's bell or fixed whistle. *** ### Why Other Options Are Incorrect **A) A bell only:** This is incorrect. A bell is required for vessels 12 meters or more in length (though a 10m vessel may carry one). The minimum requirement for a 10-meter vessel is not a specific appliance, but the functionality of making an efficient sound signal. **B) A whistle only:** This is incorrect for the same reasons as A. A whistle is mandatory only for vessels 12 meters or more in length. **D) A bell and a whistle:** This is incorrect. This combination represents the full sound signaling equipment required for vessels 12 meters but less than 20 meters (or 12 meters and above, depending on specific inland/international variations, but definitively *not* required for vessels under 12 meters). The requirement for a 10-meter vessel is explicitly less stringent than carrying both appliances.