ABYC MARINE ELECTRICAL - SET TWO
REAL EXAM QUESTIONS AND 100%
CORRECT ANSWERS 2025| GRADED A+
When selecting an inverter, is the primary concern.
A. physical size
B. output capacity
C. connection type
D. power-feed type - CORRECT ANS✔✔ B. output capacity
The efficiency loss through inverters is typically between , so a
battery charger cannot be powered from one and create a perpetual
system.
A. 0.5% to 3%
B. 5% to 15%
C. 20% to 25%
D. 35% to 50% - CORRECT ANS✔✔ B. 5% to 15%
The defines how much amperage a fuse or breaker can be subjected
to without locking or welding itself into the permanently closed position.
A. maximum working cycle
B. nominal rating
C. maximum allowable charge
D. AIC rating - CORRECT ANS✔✔ D. AIC rating
,The ABYC requires a(n) in any DC feed from a battery bank with a
capacity over 800 CCA.
A. battery switch
B. grounding cable
C. overcurrent protection device
D. inverter - CORRECT ANS✔✔ A. battery switch
The main circuit breaker(s) are considered to be the first breaker(s) in a
circuit connected in series with the battery. All subsequent breakers,
including sub-main breakers, connected in series with a main circuit
breaker are considered to be "
circuit breakers."
A. trolling
B. backup
C. branch
D. dedicated - CORRECT ANS✔✔ C. Branch
A battery switch shall be installed in the conductor(s) from each battery
or battery bank with a CCA rating greater than 800 amperes or 100 Ah if
CCA is unavailable.
, A. neutral
B. positive
C. negative
D. grounded
E. Band - CORRECT ANS✔✔ B. positive
of the AC output waveform from some inverters may affect the
operation of some GFCI devices.
A. Harmonic distortion
B. Electromagnetic induction
C. Voltage drop
D. Electronic noise - CORRECT ANS✔✔ A. Harmonic distortion
Since some inverters do not necessarily output a true sine waveform of
AC, a DVOM that uses a(n) algorithm for interpreting what it "sees" is a
must.
A. simple recursive
B. backtracking
C. true root mean square (RMS)
D. approximate - CORRECT ANS✔✔ C. true root mean square (RMS)
Gear that functions normally when run from a shore power source but either
functions erratically or not at all when run from an inverter (or generator) is
almost always a(n)
issue.
REAL EXAM QUESTIONS AND 100%
CORRECT ANSWERS 2025| GRADED A+
When selecting an inverter, is the primary concern.
A. physical size
B. output capacity
C. connection type
D. power-feed type - CORRECT ANS✔✔ B. output capacity
The efficiency loss through inverters is typically between , so a
battery charger cannot be powered from one and create a perpetual
system.
A. 0.5% to 3%
B. 5% to 15%
C. 20% to 25%
D. 35% to 50% - CORRECT ANS✔✔ B. 5% to 15%
The defines how much amperage a fuse or breaker can be subjected
to without locking or welding itself into the permanently closed position.
A. maximum working cycle
B. nominal rating
C. maximum allowable charge
D. AIC rating - CORRECT ANS✔✔ D. AIC rating
,The ABYC requires a(n) in any DC feed from a battery bank with a
capacity over 800 CCA.
A. battery switch
B. grounding cable
C. overcurrent protection device
D. inverter - CORRECT ANS✔✔ A. battery switch
The main circuit breaker(s) are considered to be the first breaker(s) in a
circuit connected in series with the battery. All subsequent breakers,
including sub-main breakers, connected in series with a main circuit
breaker are considered to be "
circuit breakers."
A. trolling
B. backup
C. branch
D. dedicated - CORRECT ANS✔✔ C. Branch
A battery switch shall be installed in the conductor(s) from each battery
or battery bank with a CCA rating greater than 800 amperes or 100 Ah if
CCA is unavailable.
, A. neutral
B. positive
C. negative
D. grounded
E. Band - CORRECT ANS✔✔ B. positive
of the AC output waveform from some inverters may affect the
operation of some GFCI devices.
A. Harmonic distortion
B. Electromagnetic induction
C. Voltage drop
D. Electronic noise - CORRECT ANS✔✔ A. Harmonic distortion
Since some inverters do not necessarily output a true sine waveform of
AC, a DVOM that uses a(n) algorithm for interpreting what it "sees" is a
must.
A. simple recursive
B. backtracking
C. true root mean square (RMS)
D. approximate - CORRECT ANS✔✔ C. true root mean square (RMS)
Gear that functions normally when run from a shore power source but either
functions erratically or not at all when run from an inverter (or generator) is
almost always a(n)
issue.
