Page 1 of 80
ABYC Marine Electrical Certification EXAM QUESTIONS
AND CORRECT DETAILED SOLUTIONS LATEST UPDATE
JUST RELEASED THIS YEAR
Question: What is the expected voltage across a 'closed' switch that is operating properly
a. It should read current battery voltage
b. It can be up to 10% less than battery voltage
c. It should read '0' VDC
d. Not enough information provided - CORRECT ANSWER✔✔c. It should read '0' VDC
Question: Sheathed ungrounded conductors connected directly to a battery must have
overcurrent protection devices located within
inches of the connection to the battery.
a. 7 "
b. 36" {slightly less than 1 meter)
c. 40 "
d. 72" - CORRECT ANSWER✔✔d. 72"
Question: In a series circuit, the more resistive loads you add:
a. The total voltage will increase
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b. The total current will increase
c. The total voltage will decrease
d. The total current will decrease - CORRECT ANSWER✔✔d. The total current will decrease
Question: The maximum number of terminals to be attached to any one terminal stud based on
ABYC Standard is:
a. 1
b. 2
c. 3
d. 4 - CORRECT ANSWER✔✔d. 4
Question: What does "trip free" circuit breaker mean?
a. The breaker is inexpensive
b. The breaker will have lots of nuisance trips
c. The breaker will trip out regardless of conditions
d. The breaker will only trip at 150% of its rated amperage - CORRECT ANSWER✔✔c. The
breaker will trip out regardless of conditions
Question: maximum current carrying capacity for an flexible cord of 16 AWG with 2 current
carrying conductors inside the engine spaces is
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a. 6 amps
b. 8 amps
c. 10 amps
d. 20 amps - CORRECT ANSWER✔✔b. 8 amps (E-11 Table XII Conductor Ampacity - Flexible
Cords)
Question: A diode is a semiconductor that passes current
a. in any direction
b. only with high voltages
c. only in one direction
d. when used as a triggering device - CORRECT ANSWER✔✔c. only in one direction
Question: 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 - CORRECT ANSWER✔✔b. 24.5 amps
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Question: T or F: Pigtails less than 7 inches (175mm) in length are exempt from overcurrent
protection requirements. - CORRECT ANSWER✔✔True
Question: 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 - CORRECT ANSWER✔✔c. 285
Question: 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 - CORRECT
ANSWER✔✔d. A factory installed length of wire included with a piece of equipment
Question: in a parallel circuit, the more resistive loads you add:
ABYC Marine Electrical Certification EXAM QUESTIONS
AND CORRECT DETAILED SOLUTIONS LATEST UPDATE
JUST RELEASED THIS YEAR
Question: What is the expected voltage across a 'closed' switch that is operating properly
a. It should read current battery voltage
b. It can be up to 10% less than battery voltage
c. It should read '0' VDC
d. Not enough information provided - CORRECT ANSWER✔✔c. It should read '0' VDC
Question: Sheathed ungrounded conductors connected directly to a battery must have
overcurrent protection devices located within
inches of the connection to the battery.
a. 7 "
b. 36" {slightly less than 1 meter)
c. 40 "
d. 72" - CORRECT ANSWER✔✔d. 72"
Question: In a series circuit, the more resistive loads you add:
a. The total voltage will increase
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b. The total current will increase
c. The total voltage will decrease
d. The total current will decrease - CORRECT ANSWER✔✔d. The total current will decrease
Question: The maximum number of terminals to be attached to any one terminal stud based on
ABYC Standard is:
a. 1
b. 2
c. 3
d. 4 - CORRECT ANSWER✔✔d. 4
Question: What does "trip free" circuit breaker mean?
a. The breaker is inexpensive
b. The breaker will have lots of nuisance trips
c. The breaker will trip out regardless of conditions
d. The breaker will only trip at 150% of its rated amperage - CORRECT ANSWER✔✔c. The
breaker will trip out regardless of conditions
Question: maximum current carrying capacity for an flexible cord of 16 AWG with 2 current
carrying conductors inside the engine spaces is
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a. 6 amps
b. 8 amps
c. 10 amps
d. 20 amps - CORRECT ANSWER✔✔b. 8 amps (E-11 Table XII Conductor Ampacity - Flexible
Cords)
Question: A diode is a semiconductor that passes current
a. in any direction
b. only with high voltages
c. only in one direction
d. when used as a triggering device - CORRECT ANSWER✔✔c. only in one direction
Question: 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 - CORRECT ANSWER✔✔b. 24.5 amps
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Question: T or F: Pigtails less than 7 inches (175mm) in length are exempt from overcurrent
protection requirements. - CORRECT ANSWER✔✔True
Question: 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 - CORRECT ANSWER✔✔c. 285
Question: 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 - CORRECT
ANSWER✔✔d. A factory installed length of wire included with a piece of equipment
Question: in a parallel circuit, the more resistive loads you add:
