ABYC CORROSION EXAM 2026 ACTUAL
EXAM PAPER QUESTIONS WITH SOLUTIONS
GRADED A+
◉ Insulated Metallic Hanger Clamps
Answer: What type of clamps are to be used for supporting wire
bundles when routed over engines and machinery?
◉ 40 lbs (E-11 Table XV)
Answer: What tensile force must a 10 Gauge crimp connector
withstand for one minute?
◉ 36 inches
Answer: What is the max allowed unsupported cable length for
battery cables?
◉ True
Answer: T or F: Running AC and DC conductors together is allowed
so long as the AC conductors are sheathed.
◉ C. Unwanted open
,Answer: The most common electrical circuit problem in marine
applications is:
A. Short circuits
B. Too much continuity
C. Unwanted open
D. Inter circuit Short
◉ D. Heat
Answer: The primary by-product of excessive electrical resistance is:
A. Increased Amperage
B. Increased Voltage
C. Reduced Ambient Temperature
D. Heat
◉ 1 HP = 746 Watts
Answer: One HP = how many watts?
◉ D. TDR (time-domain reflectometer)
Answer: What is the preferred tool for tracing shorted and open
circuits?
A. Ohm meter
B. Amp clamp
,C. Volt meter
D. TDR (time-domain reflectometer)
◉ 1 AWG
Answer: A technician is installing a cable run from the batteries to
the main DC panel board on a boat as part of a refit. The boat has a
12-volt system and the distance form the panel to the batteries is 15
ft. The maximum current draw from the panel is calculated at 90
amps. What guage cable should be used (minimum)?
◉ Yellow
Answer: DC grounded conductors on new boats that are also
equipped with AC systems should use what color insulated wire?
◉ 16 AWG
Answer: What is the smallest guage wire allowed for unsheathed
wire runs through the boat?
◉ False. Start batteries have a greater number of thinner plates
within each cell.
Answer: T or F: Compared to deep cycle (house) batteries, cranking
batteries will have thicker lead plates to facilitate the higher, short-
duration current draws.
, ◉ Cranking
Answer: Which type of battery generally recharges faster? Deep
cycle or cranking?
◉ Scotch brite and baking soda.
Answer: What tool and common household staple are used to clean
battery terminals?
◉ Most of the sulfuric acid has been absorbed into the lead plates,
leaving mostly water in the electrolyte.
Answer: Why might a fully-discharged wet-cell type battery freeze?
◉ 1 inch, 90 lbs or 2x the battery weight, for 1 minute in each
direction.
Answer: Batteries must be secured to prevent movement of more
than ______ inches in any direction when a pulling force of _____ or
_____, whichever is less, is applied through the center of gravity of the
battery for how long?
◉ True
Answer: T or F: it is ok to install batteries directly below an
uninterrupted fuel line?
◉ Must be protected with dielectric insulating material
EXAM PAPER QUESTIONS WITH SOLUTIONS
GRADED A+
◉ Insulated Metallic Hanger Clamps
Answer: What type of clamps are to be used for supporting wire
bundles when routed over engines and machinery?
◉ 40 lbs (E-11 Table XV)
Answer: What tensile force must a 10 Gauge crimp connector
withstand for one minute?
◉ 36 inches
Answer: What is the max allowed unsupported cable length for
battery cables?
◉ True
Answer: T or F: Running AC and DC conductors together is allowed
so long as the AC conductors are sheathed.
◉ C. Unwanted open
,Answer: The most common electrical circuit problem in marine
applications is:
A. Short circuits
B. Too much continuity
C. Unwanted open
D. Inter circuit Short
◉ D. Heat
Answer: The primary by-product of excessive electrical resistance is:
A. Increased Amperage
B. Increased Voltage
C. Reduced Ambient Temperature
D. Heat
◉ 1 HP = 746 Watts
Answer: One HP = how many watts?
◉ D. TDR (time-domain reflectometer)
Answer: What is the preferred tool for tracing shorted and open
circuits?
A. Ohm meter
B. Amp clamp
,C. Volt meter
D. TDR (time-domain reflectometer)
◉ 1 AWG
Answer: A technician is installing a cable run from the batteries to
the main DC panel board on a boat as part of a refit. The boat has a
12-volt system and the distance form the panel to the batteries is 15
ft. The maximum current draw from the panel is calculated at 90
amps. What guage cable should be used (minimum)?
◉ Yellow
Answer: DC grounded conductors on new boats that are also
equipped with AC systems should use what color insulated wire?
◉ 16 AWG
Answer: What is the smallest guage wire allowed for unsheathed
wire runs through the boat?
◉ False. Start batteries have a greater number of thinner plates
within each cell.
Answer: T or F: Compared to deep cycle (house) batteries, cranking
batteries will have thicker lead plates to facilitate the higher, short-
duration current draws.
, ◉ Cranking
Answer: Which type of battery generally recharges faster? Deep
cycle or cranking?
◉ Scotch brite and baking soda.
Answer: What tool and common household staple are used to clean
battery terminals?
◉ Most of the sulfuric acid has been absorbed into the lead plates,
leaving mostly water in the electrolyte.
Answer: Why might a fully-discharged wet-cell type battery freeze?
◉ 1 inch, 90 lbs or 2x the battery weight, for 1 minute in each
direction.
Answer: Batteries must be secured to prevent movement of more
than ______ inches in any direction when a pulling force of _____ or
_____, whichever is less, is applied through the center of gravity of the
battery for how long?
◉ True
Answer: T or F: it is ok to install batteries directly below an
uninterrupted fuel line?
◉ Must be protected with dielectric insulating material
