879. BOTH INTERNATIONAL & INLAND What equipment for fog signals is required for a vessel 15 meters in length?

A 15-meter vessel must carry both a whistle and a bell as required by International and Inland Rule 33, which specifies equipment for sound signals. Vessels 12 meters or more must have a whistle and bell, while those 100 meters or more require a gong in addition. The correct answer is whistle and bell only.