ABYC CORROSION STUDY GUIDE TESTED
QUESTIONS AND ACCURATE ANSWERS
●● 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)
●● 0 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?
●● Wire brush and backing 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
Answer: What provision must be in place on any fuel line located within
12 inches of a battery terminals?
●● 80 F, 25 Amps, 10.5 Volts
QUESTIONS AND ACCURATE ANSWERS
●● 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)
●● 0 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?
●● Wire brush and backing 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
Answer: What provision must be in place on any fuel line located within
12 inches of a battery terminals?
●● 80 F, 25 Amps, 10.5 Volts
