Question 1806 Deck General

The correct answer is B) prevent overloading the circuits. According to 46 CFR Subchapter T, which covers small passenger vessels, the purpose of fuses in electric wiring is to prevent overloading of the circuits. Fuses are designed to interrupt the flow of electrical current when it exceeds a safe level, protecting the wiring and other electrical components from damage due to excessive current. This helps ensure the safe operation of the vessel's electrical system. The other options are incorrect because they do not accurately reflect the primary purpose of fuses as defined in the regulations. Fuses are not used to reduce voltage, permit the use of smaller wiring, or allow for cutting out branch circuits, which are more specialized functions that may be achieved through other electrical components or design considerations.