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ABYC Marine Electrical Certification
Exam Review |Certified Q&A 2026
A. Tech A - correct-answer-Tech A says the ABYC has pull-test requirement for
wiring connecting the generator to onboard circuits. Tech B says pull-test
requirements are dictated by the generator manufacture. Which one is correct?
A. Tech A
B. Tech B
C. Both Techs
D. Neither Tech
True - correct-answer-T or F: metal AC panel boards must be grounded.
True - correct-answer-T or F: Boats that have an inverter installed must have a
warning label noting such at the main electrical panel
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The sub-panel breaker's trip point shall be no greater than 100% of the total
current draw for the entire sub-panel. - correct-answer-What must be true of a
sub-panel input circuit breaker's rating such that the main breaker may be sized
up to 150% of the sub-panel feeder conductor's ampacity?
75 C (167 F) (E-11.14.1.1.3) - correct-answer-What is the minimum insulation
temperature rating for conductors routed inside an engine room?
50 VDC (E-11.14.1.2.1) - correct-answer-What is the minimum voltage rating for
all DC conductors?
24 inches (E-11.14.1.3.7.1) - correct-answer-When multiple DC conductors are
bundled together for a distance of greater than ____ inches, the allowable
ampacity of each conductor must be derated based on the table found within
standard E-11
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True (E-11.14.1.3.7.2) - correct-answer-T or F: The AC grounding conductor shall
be permitted to be one size smaller than the current carrying conductors on
circuits rated greater than 30 Amps
B. Tech B - correct-answer-The A says the a faulty circuit breaker could require an
overhaul. Tech B says that circuit breakers used in recreational marine
applications must be replaced if found defective. Who's right?
A. Tech A
B. Tech B
C. Both may be correct, depending on circumstances
D. Neither
B. 3% - correct-answer-The maximum allowable voltage drop permitted for panel
board DC feeders is:
A. 2%
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B. 3%
C. 10%
D. 15%
True - correct-answer-T or F: Solid (non-stranded) conductors are not allowed for
AC wiring anywhere on a boat.
False. Auto-reset is not allowed. - correct-answer-T or F: magnetic transformers
with integrated secondary-side overcurrent protection and automatically
resetting thermal overload protection are ABYC compliant.
C. Continuity - correct-answer-To test a 120V AC element in a hot water heater,
the tech may run a _____ test.
A. Voltage
B. Capacitance
C. Continuity
ABYC Marine Electrical Certification
Exam Review |Certified Q&A 2026
A. Tech A - correct-answer-Tech A says the ABYC has pull-test requirement for
wiring connecting the generator to onboard circuits. Tech B says pull-test
requirements are dictated by the generator manufacture. Which one is correct?
A. Tech A
B. Tech B
C. Both Techs
D. Neither Tech
True - correct-answer-T or F: metal AC panel boards must be grounded.
True - correct-answer-T or F: Boats that have an inverter installed must have a
warning label noting such at the main electrical panel
,2|Page
The sub-panel breaker's trip point shall be no greater than 100% of the total
current draw for the entire sub-panel. - correct-answer-What must be true of a
sub-panel input circuit breaker's rating such that the main breaker may be sized
up to 150% of the sub-panel feeder conductor's ampacity?
75 C (167 F) (E-11.14.1.1.3) - correct-answer-What is the minimum insulation
temperature rating for conductors routed inside an engine room?
50 VDC (E-11.14.1.2.1) - correct-answer-What is the minimum voltage rating for
all DC conductors?
24 inches (E-11.14.1.3.7.1) - correct-answer-When multiple DC conductors are
bundled together for a distance of greater than ____ inches, the allowable
ampacity of each conductor must be derated based on the table found within
standard E-11
,3|Page
True (E-11.14.1.3.7.2) - correct-answer-T or F: The AC grounding conductor shall
be permitted to be one size smaller than the current carrying conductors on
circuits rated greater than 30 Amps
B. Tech B - correct-answer-The A says the a faulty circuit breaker could require an
overhaul. Tech B says that circuit breakers used in recreational marine
applications must be replaced if found defective. Who's right?
A. Tech A
B. Tech B
C. Both may be correct, depending on circumstances
D. Neither
B. 3% - correct-answer-The maximum allowable voltage drop permitted for panel
board DC feeders is:
A. 2%
, 4|Page
B. 3%
C. 10%
D. 15%
True - correct-answer-T or F: Solid (non-stranded) conductors are not allowed for
AC wiring anywhere on a boat.
False. Auto-reset is not allowed. - correct-answer-T or F: magnetic transformers
with integrated secondary-side overcurrent protection and automatically
resetting thermal overload protection are ABYC compliant.
C. Continuity - correct-answer-To test a 120V AC element in a hot water heater,
the tech may run a _____ test.
A. Voltage
B. Capacitance
C. Continuity
