ABYC ELECTRICAL STUDY 1 EXAM QUESTIONS WITH VERIFIED ANSWERS |AGRADED
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Course
ABYC ELECTRICAL STUDY 1
Institution
ABYC ELECTRICAL STUDY 1
ABYC ELECTRICAL STUDY 1 EXAM QUESTIONS WITH VERIFIED ANSWERS |AGRADED
the reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of - Answer-25k Ohms
/.Anodes used in cathodic protection systems shall be - Answer-painted with a protective barrier coating
/.oil ...
ABYC ELECTRICAL STUDY 1 EXAM
QUESTIONS WITH VERIFIED ANSWERS
2023\2024|AGRADED
the reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of
- Answer-25k Ohms
/.Anodes used in cathodic protection systems shall be - Answer-painted with a
protective barrier coating
/.oil pressure and temperature gauges are - Answer-installed in series
/.what type of element are in series - Answer-the switches
/.voltage regulator ( inbetween output and breaker) - Answer-controls alternator field
voltage
/.isolator transformer - Answer-cleans signal
/.how much is the increase in torque for the capacitor - Answer-250%
/.RPM modify - Answer-from the govner
/.commutator - Answer-a slip ring that serves to reverse the direction in which an
electrical current flows from the generator
/.armature - Answer-the iron the coil goes on
/.excitation (ac alternator generators) - Answer-on the rotor
/.voltage - Answer-difference in potiental
/.for sailboats the top of the lighting rod should be - Answer-6in above everything else
on the mast and filed to a sharp point
/.independent breaker to - Answer-activate inverter
/.ohm meter reads - Answer-amps AC only
/.single phase - Answer-needs netural
/.ground fault - Answer-if electricity leaks from intended paths in these 2 wires ( ac hot
and neutral)
, /.battery isolator - Answer-charge batteries with 1 alternator
/.galvanic isolator - Answer-blocks bad DC currents
/.only at the source of power - Answer-the neutral and ground should be connected
/.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. - Answer-15
/.when testing for excessive EMF emission near a conductor or appliance, the tool of
choice - Answer-gauss meter
/.the primary problem with using a series circuit to supply multiple loads is - Answer-
voltage drop through the circuit will be excessive
/.based on this section, the most common electrical circuit problem in marine
applications is - Answer-unwanted open
/.the primary by-product of excessive electrical resistance is - Answer-heat
/.one horsepower equals - Answer-746 watts
/.excessive electrical resistance can be caused by - Answer-undersized wires,loose
connections and corrosion
/.gauss meter - Answer-helps detect sources of magnetic interference that affect
electronic compasses,autopliots and others
/.an intercircuit short circuit - Answer-is one which unwanted conductors , such as an
errant screw, completes a circuit in ways it wasn't designed to be connected
/.time-domain reflectometer - Answer-can pinpoint the location of short circuts and open
circuits
/.BASED ON ABYC STANDARDS, A 1,000 WATT 120VAC WATER HEATER, WHOSE
SUPPLY CABLE HAS 105C THERMAL RATING, IS RUN OUTSIDE OF THE ENGINE
ROOM AND IS NOT BUNDLED WITH ANY OTHER CONDUCTORS. WHAT MINIMUM
SIZE WIRE GAUGE WILL BE REQUIRED TO SERVICE THIS CIRCUIT? - Answer-16
gauge
/.WHICH OF THE FOLLOWING COMPONENTS DOES NOT REQUIRE
OVERCURRENT PROTECTION? - Answer-STARTER MOTOR
/.1. EXCESSIVE ELECTRICAL RESISTANCE CAN BE CAUSED BY: - Answer-
UNDERSIZED WIRE, LOOSE CONNECTIONS AND CORROSION
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