2024 ABYC Marine Electrical - Set Two Correct Questions & Answers!!

When selecting an inverter, ___ is the primary concern. A. physical size B. output capacity C. connection type D. power-feed type - ANSWER B. output capacity The efficiency loss through inverters is typically between ___, so a battery charger cannot be powered from one and create a perpetual system. A. 0.5% to 3% B. 5% to 15% C. 20% to 25% D. 35% to 50% - ANSWER B. 5% to 15% The ___ defines how much amperage a fuse or breaker can be subjected to without locking or welding itself into the permanently closed position. A. maximum working cycle B. nominal rating C. maximum allowable charge D. AIC rating - ANSWER D. AIC rating The ABYC requires a(n) ___ in any DC feed from a battery bank with a capacity over 800 CCA. A. battery switch B. grounding cable C. overcurrent protection device D. inverter - ANSWER A. battery switch The main circuit breaker(s) are considered to be the first breaker(s) in a circuit connected in series with the battery. All subsequent breakers, including sub-main breakers, connected in series with a main circuit breaker are considered to be "___ circuit breakers." A. trolling B. backup C. branch D. dedicated - ANSWER C. Branch A battery switch shall be installed in the ___ conductor(s) from each battery or battery bank with a CCA rating greater than 800 amperes or 100 Ah if CCA is unavailable. A. neutral B. positive