Question 42 ONC07 - OUPV-Near Coastal

The Correct Answer is C ### Why Option C is Correct: **Option C) Any means of making an efficient sound signal** is correct because it directly aligns with the requirements set forth in the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 33(1) and associated national regulations (like US Inland Rules). For vessels less than 12 meters in length (which includes a 10-meter vessel), COLREGs Rule 33(1) requires them to be provided with **"some efficient means of making a sound signal."** This means that while they are *not* required to carry the mandated, specified whistle and bell equipment required for larger vessels, they must have some way (such as an air horn, a handheld horn, or any other device) to create the necessary signals for maneuvering, warning, and restricted visibility. ### Why the Other Options are Incorrect: * **A) A bell only:** This is incorrect. A bell is specifically required for vessels 12 meters or more in length, and it cannot fulfill all the required sound signals (like short/prolonged blasts) which generally necessitate a whistle or horn. * **B) A whistle only:** This is incorrect. While a whistle (or horn) is the primary means of making maneuvering and warning signals, the regulations for a vessel under 12 meters do not strictly mandate a *whistle* meeting the technical specifications of Rule 33—only an *efficient means* of making a signal. * **D) A bell and a whistle:** This is incorrect. The combination of a standardized bell and whistle is only mandated for vessels 12 meters in length and over (with larger, specified equipment required for vessels 20 meters and over, and 100 meters and over, respectively). A 10-meter vessel has a lesser requirement.