Marine Electrical Exam 2024 Questions and Answers (Graded A+)

AC (alternating current ) - ANSWER-voltage potentials between 120v and 240v (less than 300v ) (ABYC standards) DC (direct current ) - ANSWER-less than 50 volts by ABYC standards frequency - ANSWER-how often electrical potential alternates electrical potential - ANSWER-the difference in electrical charge between the battery's positive and negative terminal volts - ANSWER-units used to measure electrical potential. Voltage - ANSWER-the pressure or force available in an electrical circuit. Another definition of voltage describes it as a difference of potential from one point in the circuit to another. Hertz - ANSWER-unit of measure for frequency digital multimeter - ANSWER-lets you see what is happening inside an electrical circuit self-scaling - ANSWER-means the multimeter will always select the appropriate scale for whatever it is you are measuring total circuit length - ANSWER-from the source of power to the load and back to the source grounding - ANSWER-not normally current-carrying. Primary use is as a safety conductor. ABYC - ANSWER-The American Boat and Yacht Council: a consortium of boaters, marine surveyors, boat manufacturers, and the US Coast Guard, working together to establish marine safety standards and recommended practices. overcurrent protection - ANSWER-a fuse or circuit breaker sources of DC power - ANSWER-The most widely used DC power source is a battery. Other sources of DC power include solar panels, wind generators, and alternators. Engine Cranking Battery - ANSWER-battery that is designed to deliver a short burst of power, followed by a quick recharge. Ho