ABYC Marine Electrical Certification
Exam Review Actual Complete Questions
and Detailed Answers Newest 2026-2027
. when in invert mode - ANSWER✔✔To comply with ABYC requirements, a
Neutral to Ground connection must be present at the inverter during which of the
following conditions:
a. when in charge rnode
b. when in standby mode
c. when in transfer mode
d. when in invert mode
b. break before make transfer switch - ANSWER✔✔In order to eliminate the
neutral to ground connection when shore power is being transferred through the
inverter a ________ is utilized.
a. make before break transfer switch
b. break before make transfer switch
c. manual disconnect switch
d. battery selector switch
c. A-31 - ANSWER✔✔Which ABYC standard refers to the fuse in the DC
positive conductor for inverter/battery charger output protection?
a. A-25
,b. A-27
c. A-31
d. A-34
d. AC output - ANSWER✔✔To check an inverters _________ a technician may
need a true RMS meter:
a. DC input
b. DC output
c. AC input
d. AC output
d. All of the above - ANSWER✔✔Inverter output neutral shall be disconnected
from ground at the inverter when:
a. Inverter is operating as a charger
b. Inverter is operating as a transfer device
c. Inverter is operating in pass through mode
d. All of the above
b. 2 - ANSWER✔✔An inverter or inverter charger must be installed at least
______ feet above normal accumulation of bilge water, or protected from bilge
water splash.
a. 1
b. 2
c. 3
d. 4
,a. AC induction motors - ANSWER✔✔Which AC equipment should not run &
will be damaged from a 'square' or 'modified' wave inverter
a. AC induction motors
b. Flatscreen T V
c. Printers
d. AC halogen lighting
c. Main battery charger - ANSWER✔✔From the choices provided which device
would typically not be fed from an inverter's AC output?
a . Microwave oven
b. Galley lighting
c. Main battery charger
d. Refrigerator
d. both a and c - ANSWER✔✔Which of the following metals may exhibit two
distinct corrosion potentials (and occupy two different positions on the galvanic
scale) depending on the composition of the electrolyte, other environmental
factors, and/or surface conditions of the metal itself?
a. Type 316 stainless steel
b. Silicone bronze
c. Type 304 stainless steel
d. both a and c
d. 1 foot square - ANSWER✔✔An adequate sized under-water lightning ground
plate will have an area of at least:
, a. 10 square feet
b. 4 square feet
c. 2 square feet
d. 1 foot square
a. Tech A - ANSWER✔✔Tech A says that lightening protection must not have a
bend over 90
degrees. Tech B says that a total of 90 degrees must not be exceeded.
Who is correct?
a. Tech A
b. Tech B
c. Both Tech A and Tech B
d. Both are incorrect
c. Green #8 - ANSWER✔✔What wire is best suited for bonding under-water
components:
a. Black or Yellow or green #8
b. Black or Yellow #8
c. Green #8
d. None of the above
False. Anode is negative, Cathode is positive - ANSWER✔✔T or F: An anode
can be defined as an electrode of a supplied-current cell which is connected to
the positive terminal of a DC current source .
Exam Review Actual Complete Questions
and Detailed Answers Newest 2026-2027
. when in invert mode - ANSWER✔✔To comply with ABYC requirements, a
Neutral to Ground connection must be present at the inverter during which of the
following conditions:
a. when in charge rnode
b. when in standby mode
c. when in transfer mode
d. when in invert mode
b. break before make transfer switch - ANSWER✔✔In order to eliminate the
neutral to ground connection when shore power is being transferred through the
inverter a ________ is utilized.
a. make before break transfer switch
b. break before make transfer switch
c. manual disconnect switch
d. battery selector switch
c. A-31 - ANSWER✔✔Which ABYC standard refers to the fuse in the DC
positive conductor for inverter/battery charger output protection?
a. A-25
,b. A-27
c. A-31
d. A-34
d. AC output - ANSWER✔✔To check an inverters _________ a technician may
need a true RMS meter:
a. DC input
b. DC output
c. AC input
d. AC output
d. All of the above - ANSWER✔✔Inverter output neutral shall be disconnected
from ground at the inverter when:
a. Inverter is operating as a charger
b. Inverter is operating as a transfer device
c. Inverter is operating in pass through mode
d. All of the above
b. 2 - ANSWER✔✔An inverter or inverter charger must be installed at least
______ feet above normal accumulation of bilge water, or protected from bilge
water splash.
a. 1
b. 2
c. 3
d. 4
,a. AC induction motors - ANSWER✔✔Which AC equipment should not run &
will be damaged from a 'square' or 'modified' wave inverter
a. AC induction motors
b. Flatscreen T V
c. Printers
d. AC halogen lighting
c. Main battery charger - ANSWER✔✔From the choices provided which device
would typically not be fed from an inverter's AC output?
a . Microwave oven
b. Galley lighting
c. Main battery charger
d. Refrigerator
d. both a and c - ANSWER✔✔Which of the following metals may exhibit two
distinct corrosion potentials (and occupy two different positions on the galvanic
scale) depending on the composition of the electrolyte, other environmental
factors, and/or surface conditions of the metal itself?
a. Type 316 stainless steel
b. Silicone bronze
c. Type 304 stainless steel
d. both a and c
d. 1 foot square - ANSWER✔✔An adequate sized under-water lightning ground
plate will have an area of at least:
, a. 10 square feet
b. 4 square feet
c. 2 square feet
d. 1 foot square
a. Tech A - ANSWER✔✔Tech A says that lightening protection must not have a
bend over 90
degrees. Tech B says that a total of 90 degrees must not be exceeded.
Who is correct?
a. Tech A
b. Tech B
c. Both Tech A and Tech B
d. Both are incorrect
c. Green #8 - ANSWER✔✔What wire is best suited for bonding under-water
components:
a. Black or Yellow or green #8
b. Black or Yellow #8
c. Green #8
d. None of the above
False. Anode is negative, Cathode is positive - ANSWER✔✔T or F: An anode
can be defined as an electrode of a supplied-current cell which is connected to
the positive terminal of a DC current source .
