ABYC Electrical 2 Actual Questions
and Correct Answers| Latest Update
D
ABYC standard ________ applies to inverters
A. E-2
B. A-27
C. A-28
D. A - 31
A
A true RMS voltmeter is required to accurately check output voltage from a(n):
A. non-sinusoidal output inverter
B. Isolation transformer
C. Inverter DC input
D. Galvanic isolator
,C
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
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
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
To check for charger output to the battery de-energize 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
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
, On a brushless generator a possible cause for low AC voltage output under load
could be:
A. High engine RPM
B. Faulty exciter winding diode rectifier
C. Faulty output circuit breaker
D. Excessively high DC voltage supply
A
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
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-energize the circuit whenever possible
D. Not wear jewelry
and Correct Answers| Latest Update
D
ABYC standard ________ applies to inverters
A. E-2
B. A-27
C. A-28
D. A - 31
A
A true RMS voltmeter is required to accurately check output voltage from a(n):
A. non-sinusoidal output inverter
B. Isolation transformer
C. Inverter DC input
D. Galvanic isolator
,C
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
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
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
To check for charger output to the battery de-energize 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
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
, On a brushless generator a possible cause for low AC voltage output under load
could be:
A. High engine RPM
B. Faulty exciter winding diode rectifier
C. Faulty output circuit breaker
D. Excessively high DC voltage supply
A
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
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-energize the circuit whenever possible
D. Not wear jewelry
