IYRS Electrical ABYC Exam
Questions and Verified Answers
100%
15 - correct answer ✔✔The minimum amp circuit breaker that should be used to protect a
120V water heater circuit with a 1600-watt element would be rated at ________ amps
Gauss Meter - correct answer ✔✔When testing for excessive EMF emission near a conductor or
appliance, the tool of choice is a
voltage drop across each load will be excessive - correct answer ✔✔The primary problem with
using a series circuit to supply multiple loads is that
unwanted open - correct answer ✔✔the most common electrical circuit problem in marine
applications is
heat - correct answer ✔✔the primary by-product of excessive electrical resistance is
TDR - correct answer ✔✔the tool of choice today for tracing shorted and open circuits is the:
Metal - correct answer ✔✔What material is recommended for clamping conductors over
engines and moving machinery according to the ABYC
9 inches (225 mm) - correct answer ✔✔according to ABYC acceptable minimum clearance for
routing wire near a dry exhaust section is
, 4 - correct answer ✔✔The maximum number of terminals allowed to be attached to any one
terminal stud based on ABYC is
0 amps - correct answer ✔✔How much current should flow through the
DC grounding conductor in a 25-amp DC motor circuit
Where the ampacity of each individual conductor is sufficient to carry the entire load current
shared by the parallel conductors - correct answer ✔✔conductors of #10 AWG and larger shall
be permitted to be connected in parallel ______
0 AWG - correct answer ✔✔A technician is installing the cable run from the batteries to the
main DC panelboard on a boat aspart of a refit. The boat has a 12-volt system, and the distance
from the panel to the batteries is 15 ft (approximately 3 m).The maximum current draw from
the panel is calculated at 90 amps.What gauge cable should be used at a minimum to maintain
Standards compliance?
yellow - correct answer ✔✔8. DC grounded conductors on new boats that are also equipped
with AC systems should use _________ insulation.
16 inches (400 mm) - correct answer ✔✔the maximum spacing for cable run support based on
ABYC is
16 AWG - correct answer ✔✔the smallest gauge cable allowed for unsheathed wire runs
through the boat is
14 - correct answer ✔✔The maximum sustained charging voltage acceptable to some gel cell
battery manufacturers is
Questions and Verified Answers
100%
15 - correct answer ✔✔The minimum amp circuit breaker that should be used to protect a
120V water heater circuit with a 1600-watt element would be rated at ________ amps
Gauss Meter - correct answer ✔✔When testing for excessive EMF emission near a conductor or
appliance, the tool of choice is a
voltage drop across each load will be excessive - correct answer ✔✔The primary problem with
using a series circuit to supply multiple loads is that
unwanted open - correct answer ✔✔the most common electrical circuit problem in marine
applications is
heat - correct answer ✔✔the primary by-product of excessive electrical resistance is
TDR - correct answer ✔✔the tool of choice today for tracing shorted and open circuits is the:
Metal - correct answer ✔✔What material is recommended for clamping conductors over
engines and moving machinery according to the ABYC
9 inches (225 mm) - correct answer ✔✔according to ABYC acceptable minimum clearance for
routing wire near a dry exhaust section is
, 4 - correct answer ✔✔The maximum number of terminals allowed to be attached to any one
terminal stud based on ABYC is
0 amps - correct answer ✔✔How much current should flow through the
DC grounding conductor in a 25-amp DC motor circuit
Where the ampacity of each individual conductor is sufficient to carry the entire load current
shared by the parallel conductors - correct answer ✔✔conductors of #10 AWG and larger shall
be permitted to be connected in parallel ______
0 AWG - correct answer ✔✔A technician is installing the cable run from the batteries to the
main DC panelboard on a boat aspart of a refit. The boat has a 12-volt system, and the distance
from the panel to the batteries is 15 ft (approximately 3 m).The maximum current draw from
the panel is calculated at 90 amps.What gauge cable should be used at a minimum to maintain
Standards compliance?
yellow - correct answer ✔✔8. DC grounded conductors on new boats that are also equipped
with AC systems should use _________ insulation.
16 inches (400 mm) - correct answer ✔✔the maximum spacing for cable run support based on
ABYC is
16 AWG - correct answer ✔✔the smallest gauge cable allowed for unsheathed wire runs
through the boat is
14 - correct answer ✔✔The maximum sustained charging voltage acceptable to some gel cell
battery manufacturers is
