ABYC Electrical 2 Exam (Questions and Answers)

ABYC standard ________ applies to inverters A. E-2 B. A-27 C. A-28 D. A - 31 - Answer-D A true RMS voltmeter is required to accuralty check output voltage from a(n): A. non-sinusoidal output inverter B. Isolation transformer C. Inverter DC input D. Galvanic isolator - Answer-A An AC voltmeter is required at the panel if the boat is equipped with: A. A DC windlass B. An AC- powered water heater C. An inverter D. AC- powered reading lamps - Answer-C All of the following could cause a conductor to overheat except. A. Undersized conductor B. Excessive Amperage C. Insulation temp rating too low D. Corroded connector - Answer-CTech A says that AC and DC are able to run together down the same conductor. Tech B says that this is technically impossible which tech is correct? A. Tech A B. Tech B C. Both techs D. Neither tech - Answer-A To check for charger output to the battery de-enegize charger check batter open - circuit voltage reenergize the charger and check for a voltage ________V DC or more Conductance tester A. Rise of 14 B. Drop of 0.5 C. Drop pf 14 D. Rise of 0.5 - Answer-D The tool of choice for testing AC generator winding insulation integrity is a: A. TDR B. Fox and hound C. Megohmmeter D. Clamp - type ammeter - Answer-C On a brushless generator a possible cause for low AC voltage output under load could be: A. High engin RPM B. Faulty exciter winding diode rectifier C. Faulty output circuit breaker D. Excessively high DC voltage supply - Answer-B All of the following could cause an overheated electrical connection except:A. Conductor with an excessively high insulation temperature rating B. Loose terminal connection C. Corroded connection D. Undersized conductor for the load demand - Answer-A