Abyc Marine Electrical Certification Exam Review Questions & Answers 2024

On diesels, the oil pressure sender may be used to switch alternator on/off and the trigger the tachometer. {Ans: Describe why a non-functional tachometer and charging system on a diesel engine may be caused by a failed oil pressure sending unit.}False {Ans: T or F: CO detectors will also detect smoke in most situations.}c. remotely activated switches {Ans: Solenoids are often used as: a. resistors b. capacitors c. remotely activated switches d. voltage regulating devices}1 sq. ft. {Ans: What is the minimal required surface area for lightning protection system's immersed ground plate?}b. 8 amps (E-11 Table XII Conductor Ampacity - Flexible Cords) {Ans: maximum current carrying capacity for an flexible cord of 16 AWG with 2 current carrying conductors inside the engine spaces is a. 6 amps b. 8 amps c. 10 amps d. 20 amps}b. 8 AWG (using E-11 Table IX, 3% voltage drop, 40' total distance, 10 Amps) {Ans: You're installing a 500 GPH bilge pump to be used as a shower pump (just to drain the shower grey-water). It draws 8 amps, is 20' from the distribution panel, and operates at 12 volts. Using the ABYC voltage drop table, what size