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ABYC MARINE ELECTRIC AL
CERTIFICATION EXAM WITH 300
ACCURATE AND VERIFIE D
QUESTIONS COVERING E LECTRICAL
THEORY, MARINE STAND ARDS,
SYSTEM INSTALLATION,
TROUBLESHOOTING, AND SAFETY
PROTOCOLS AS DEFINED BY THE
AMERICAN BOAT AND YA CHT
COUNCIL.
Question : How often (in inches) shall wire bundles be
supported?
Correct answer: Every 18 inches.
Question : What type of clamps are to be used for
supporting wire bundles when routed over engines and machinery?
Correct answer: Insulated Metallic Hanger Clamps
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Question : What tensile force must a 10 Gauge crimp
connector withstand for one minute?
Correct answer: 40 lbs (E-11 Table XV)
Question : What is the max allowed unsupported cable
length for battery cables?
Correct answer: 36 inches
Question : T or F: Running AC and DC conductors together is allowed so long as the AC conductors are sheathed.
Correct answer: True
Question : The most common electrical circuit problem in
marine applications is:
- Short circuits
- Too much continuity
- Unwanted open
- Inter circuit Short
Correct answer: C. Unwanted open
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Question : The primary by-product of excessive electrical
resistance is:
- Increased Amperage
- Increased Voltage
- Reduced Ambient Temperature
- Heat
Correct answer: D. Heat
Question : One HP = how many watts?
Correct answer: 1 HP = 746 Watts
Question : What is the preferred tool for tracing shorted
and open circuits?
- Ohm meter
- Amp clamp
- Volt meter
- TDR (time-domain reflectometer)
Correct answer: D. TDR (time-domain reflectometer)
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Question : 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)?
Correct answer: 0 AWG
Question : DC grounded conductors on new boats that are
also equipped with AC systems should use what color insulated wire?
Correct answer: Yellow
Question : What is the smallest guage wire allowed for
unsheathed wire runs through the boat?
Correct answer: 16 AWG
Question : T or F: Compared to deep cycle (house) batteries, cranking batteries will have thicker lead plates to facilitate the higher, short-duration current draws.