ABYC MARINE ELECTRICAL CERTIFICATION
EXAM WITH VERIFIED QUESTIONS AND
ANSWERS|| ALREADY GRADED A+ ||
GUARANTEED PASS || LATEST UPDATE 2025
c. 14.6 Amps (not Volts!!) - ANSWER-A 120V hot water heater is rated at
1750 watts. How much current does it use:
a. 12.5 Amps
b. 12.5 Ohms
c. 14.6 Amps
d. 14.6 Volts
a. Are kept separate - ANSWER-At the AC distribution panels on boats the
green and white wires...
a. Are kept separate
b. Are tied together
c. Are cut
d. None of the above
b. Excessive frequency - ANSWER-Overheating at a junction point in the AC
distribution panel can be caused by all of the following EXCEPT
a. Loose terminal
b. Excessive frequency
c. Excessive load
d. Improperly sized conductor
,d. Both A and B (see E-11.9.3.2) - ANSWER-Technician A says the AC system
wiring must include a voltmeter installed on the main panelboard if the system
wiring is permanently connected to a genset. Technician B says a voltmeter
must be installed if the genset is connected to any permanently installed motor
or inverter circuit. Which is correct?
a. Technician A
b. Technician B
c. Neither A nor B
d. Both A and B
What is the expected voltage when measured between Hot and Neutral for a 120
Volt AC circuit?
a. 120 volts AC
b. 120 Volts DC
c. 0 Volts AC
d. None of the Above- ANSWER- A
To test a 120VAC element in a water heater the technician may run a test.
a. Voltage
b. Capacitance
c. Continuity
d. Inductance- ANSWER- C
Allowable amperage for AC conductors of 14 AWG, 105 degree C insulation,
outside the engine spaces, when 2 current carrying conductors are bundled
together is
a. 35 amps
b. 24.5 amps
c. 20.8 amps
d. none of the above- ANSWER- B
,Allowable amps less than 50 volts (not bundled). You have a cable that runs
from a battery to a bow thruster. All components are in the forward cabin. The
wire is good 105 C rated #0 AWG. How many amps can safely pass through
that cable?
a. 200
b. 242.3
c. 285
d. 330- ANSWER- C
Pigtails less than 7 inches (175mm) in length are exempt from overcurrent
protection requirements. A pigtail is defined as:
a. A factory molded cord set for shorepower.
b. A length of wire (less than 7") installed by technician to a piece of electronic
equipment
c. The factory wiring attached to a bilge pump -
d. A factory installed length of wire included with a piece of equipment -
ANSWER- D
In a parallel circuit, the more resistive loads you add:
a. The total voltage will increase
b. The total current will increase
c. The total voltage will decrease
d. The t o t a l current w i l l decrease- ANSWER- B
Strain relief shall be provided for all wiring passing through the battery charger
case to relieve strain on terminals, splices or internal wiring. Unless a strain
relief method is integral with the case for wiring passing through, a means to
achieve strain relief shall be installed within inches of the case.
a. 3 "
, b. 5 "
c. 6 "
d. 10 "- ANSWER- C
What is a possible problem with installing a new solid state Voltage regulator to
replace a manual one?
a. Overcurrent protection will have to match new amperage draw from device.
b. There could be severe radio interference from the new device.
c. Reverse influx could result, and diodes will have to be installed to modify
voltage flow.
d . None of the above- ANSWER- B
The neutral for AC power sources shall be grounded at which point?
a. through the shore power cable and shall not be grounded on board the boat.
b. Generator neutral shall be grounded at the generator
c. Inverter neutral shall be grounded at the inverter when inverter is producing
AC power.
d. All of the above- ANSWER- D
When more than one shore power inlet is installed, ABYC recommends that the
neutrals are
a. not connected together
b. connected together
c. connected to AC grounding bus
d. connected to DC grounding bus- ANSWER- A
For a single shore power installation with multiple inlets, all current carrying
conductors shall be
a. connected together
EXAM WITH VERIFIED QUESTIONS AND
ANSWERS|| ALREADY GRADED A+ ||
GUARANTEED PASS || LATEST UPDATE 2025
c. 14.6 Amps (not Volts!!) - ANSWER-A 120V hot water heater is rated at
1750 watts. How much current does it use:
a. 12.5 Amps
b. 12.5 Ohms
c. 14.6 Amps
d. 14.6 Volts
a. Are kept separate - ANSWER-At the AC distribution panels on boats the
green and white wires...
a. Are kept separate
b. Are tied together
c. Are cut
d. None of the above
b. Excessive frequency - ANSWER-Overheating at a junction point in the AC
distribution panel can be caused by all of the following EXCEPT
a. Loose terminal
b. Excessive frequency
c. Excessive load
d. Improperly sized conductor
,d. Both A and B (see E-11.9.3.2) - ANSWER-Technician A says the AC system
wiring must include a voltmeter installed on the main panelboard if the system
wiring is permanently connected to a genset. Technician B says a voltmeter
must be installed if the genset is connected to any permanently installed motor
or inverter circuit. Which is correct?
a. Technician A
b. Technician B
c. Neither A nor B
d. Both A and B
What is the expected voltage when measured between Hot and Neutral for a 120
Volt AC circuit?
a. 120 volts AC
b. 120 Volts DC
c. 0 Volts AC
d. None of the Above- ANSWER- A
To test a 120VAC element in a water heater the technician may run a test.
a. Voltage
b. Capacitance
c. Continuity
d. Inductance- ANSWER- C
Allowable amperage for AC conductors of 14 AWG, 105 degree C insulation,
outside the engine spaces, when 2 current carrying conductors are bundled
together is
a. 35 amps
b. 24.5 amps
c. 20.8 amps
d. none of the above- ANSWER- B
,Allowable amps less than 50 volts (not bundled). You have a cable that runs
from a battery to a bow thruster. All components are in the forward cabin. The
wire is good 105 C rated #0 AWG. How many amps can safely pass through
that cable?
a. 200
b. 242.3
c. 285
d. 330- ANSWER- C
Pigtails less than 7 inches (175mm) in length are exempt from overcurrent
protection requirements. A pigtail is defined as:
a. A factory molded cord set for shorepower.
b. A length of wire (less than 7") installed by technician to a piece of electronic
equipment
c. The factory wiring attached to a bilge pump -
d. A factory installed length of wire included with a piece of equipment -
ANSWER- D
In a parallel circuit, the more resistive loads you add:
a. The total voltage will increase
b. The total current will increase
c. The total voltage will decrease
d. The t o t a l current w i l l decrease- ANSWER- B
Strain relief shall be provided for all wiring passing through the battery charger
case to relieve strain on terminals, splices or internal wiring. Unless a strain
relief method is integral with the case for wiring passing through, a means to
achieve strain relief shall be installed within inches of the case.
a. 3 "
, b. 5 "
c. 6 "
d. 10 "- ANSWER- C
What is a possible problem with installing a new solid state Voltage regulator to
replace a manual one?
a. Overcurrent protection will have to match new amperage draw from device.
b. There could be severe radio interference from the new device.
c. Reverse influx could result, and diodes will have to be installed to modify
voltage flow.
d . None of the above- ANSWER- B
The neutral for AC power sources shall be grounded at which point?
a. through the shore power cable and shall not be grounded on board the boat.
b. Generator neutral shall be grounded at the generator
c. Inverter neutral shall be grounded at the inverter when inverter is producing
AC power.
d. All of the above- ANSWER- D
When more than one shore power inlet is installed, ABYC recommends that the
neutrals are
a. not connected together
b. connected together
c. connected to AC grounding bus
d. connected to DC grounding bus- ANSWER- A
For a single shore power installation with multiple inlets, all current carrying
conductors shall be
a. connected together
