ABYC Electrical 2 UPDATED ACTUAL
Questions and CORRECT Answers
D - CORRECT ANSWER - ABYC standard ________ applies to inverters
A. E-2
B. A-27
C. A-28
D. A - 31
A - CORRECT ANSWER - 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
C - CORRECT ANSWER - 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
C - CORRECT ANSWER - 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
A - CORRECT ANSWER - Tech 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
D - CORRECT ANSWER - To check for charger output to the battery de-enegize charger
check batter open - circuit voltage re-energize 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
C - CORRECT ANSWER - 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
,B - CORRECT ANSWER - 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
A - CORRECT ANSWER - 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
B - CORRECT ANSWER - When trouble shooting AC appliances and equipment for
safety considerations the tech should do all of the following except
A. Use lock out and tag out procedures
B. By-pass over current devices when possible
C. De-enegrgize the circuit whenever possible
D. Not wear jewelry
C - CORRECT ANSWER - For Charging the battery, the alternator produces alternating
current that must be changed to direct current by the.
A. Solenoid
, B. Starter
C. Rectifier
D. Voltage regulator
C - CORRECT ANSWER - On an inverter that does not provide a true sine wave output,
low voltage troubleshoots must be accomplished using a(n) _________________ type DVOM
A. Analog
B. Average responding
C. True RMS
D. Oscillating
A - CORRECT ANSWER - A tech is installing the cable run from the batteries to the main
DC pannelboard on a boat as part of a refit. The boat has a 12-volt system, and the distance from
panel to batteries is 15ft. The max current draw from panel is calculated at 90 amps. what gauge
cable should you use?
A. 0AWG
B. 2AWG
C. 4AWG
D. 6AWG
A - CORRECT ANSWER - Based on the material within section 11, high frequency
transformers typically run ______ than traditional transformers.
A. Cooler
B. Hotter
C. Faster
D. Slower
Questions and CORRECT Answers
D - CORRECT ANSWER - ABYC standard ________ applies to inverters
A. E-2
B. A-27
C. A-28
D. A - 31
A - CORRECT ANSWER - 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
C - CORRECT ANSWER - 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
C - CORRECT ANSWER - 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
A - CORRECT ANSWER - Tech 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
D - CORRECT ANSWER - To check for charger output to the battery de-enegize charger
check batter open - circuit voltage re-energize 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
C - CORRECT ANSWER - 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
,B - CORRECT ANSWER - 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
A - CORRECT ANSWER - 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
B - CORRECT ANSWER - When trouble shooting AC appliances and equipment for
safety considerations the tech should do all of the following except
A. Use lock out and tag out procedures
B. By-pass over current devices when possible
C. De-enegrgize the circuit whenever possible
D. Not wear jewelry
C - CORRECT ANSWER - For Charging the battery, the alternator produces alternating
current that must be changed to direct current by the.
A. Solenoid
, B. Starter
C. Rectifier
D. Voltage regulator
C - CORRECT ANSWER - On an inverter that does not provide a true sine wave output,
low voltage troubleshoots must be accomplished using a(n) _________________ type DVOM
A. Analog
B. Average responding
C. True RMS
D. Oscillating
A - CORRECT ANSWER - A tech is installing the cable run from the batteries to the main
DC pannelboard on a boat as part of a refit. The boat has a 12-volt system, and the distance from
panel to batteries is 15ft. The max current draw from panel is calculated at 90 amps. what gauge
cable should you use?
A. 0AWG
B. 2AWG
C. 4AWG
D. 6AWG
A - CORRECT ANSWER - Based on the material within section 11, high frequency
transformers typically run ______ than traditional transformers.
A. Cooler
B. Hotter
C. Faster
D. Slower
