ABYC ELECTRICAL STUDY 1 questions with
solutions 2025
the reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of
25k Ohms
oil pressure and temperature gauges are
installed in series
what type of element are in series
the switches
voltage regulator ( inbetween output and breaker)
controls alternator field voltage
isolator transformer
cleans signal
how much is the increase in torque for the capacitor
250%
RPM modify
from the govner
commutator
a slip ring that serves to reverse the direction in which an electrical current flows from the
generator
armature
the iron the coil goes on
excitation (ac alternator generators)
on the rotor
for sailboats the top of the lighting rod should be
6in above everything else on the mast and filed to a sharp point
, ohm meter reads
amps AC only
single phase
needs netural
ground fault
if electricity leaks from intended paths in these 2 wires; ac hot and neutral
Device used to charge multiple batteries with 1 alternator is _________
Battery Isolator
Device used to block stray DC currents is ______________
Galvanic Isolator
Neutral and ground conductors should be connected at the ____________
source of poaer
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.
15
when testing for excessive EMF emission near a conductor or appliance, the tool of choice
gauss meter
the primary problem with using a series circuit to supply multiple loads is
voltage drop through the circuit will be excessive
based on this section, the most common electrical circuit problem in marine applications is
unwanted open
the primary by-product of excessive electrical resistance is
heat
one horsepower equals
746 watts
excessive electrical resistance can be caused by
solutions 2025
the reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of
25k Ohms
oil pressure and temperature gauges are
installed in series
what type of element are in series
the switches
voltage regulator ( inbetween output and breaker)
controls alternator field voltage
isolator transformer
cleans signal
how much is the increase in torque for the capacitor
250%
RPM modify
from the govner
commutator
a slip ring that serves to reverse the direction in which an electrical current flows from the
generator
armature
the iron the coil goes on
excitation (ac alternator generators)
on the rotor
for sailboats the top of the lighting rod should be
6in above everything else on the mast and filed to a sharp point
, ohm meter reads
amps AC only
single phase
needs netural
ground fault
if electricity leaks from intended paths in these 2 wires; ac hot and neutral
Device used to charge multiple batteries with 1 alternator is _________
Battery Isolator
Device used to block stray DC currents is ______________
Galvanic Isolator
Neutral and ground conductors should be connected at the ____________
source of poaer
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.
15
when testing for excessive EMF emission near a conductor or appliance, the tool of choice
gauss meter
the primary problem with using a series circuit to supply multiple loads is
voltage drop through the circuit will be excessive
based on this section, the most common electrical circuit problem in marine applications is
unwanted open
the primary by-product of excessive electrical resistance is
heat
one horsepower equals
746 watts
excessive electrical resistance can be caused by
