ABYC Electrical Exam Questions with 100%
Correct Answers
higher voltage increased capacity
2 or More batteries connected in series provides_________, or in parallel to
provide_________
hydrogen
Batteries gas of what
the engine negative terminal or the DC main negative bus
If an AC system is installed the main AC system grounding bus shall be connected to what?
isolation transformer isolates all current crying AC system conductors and the AC
drowning conductor, Polarization transformers do not isolate the AC grounding
conductor.
Difference between an isolation transformer and polarization transformer
800 100
A battery switch shall be installed in the positive conductors from each battery or battery
bank with a CCA rating greater than _____amperes or _____Ah if CCA is unavailable
green white
with 120Volt systems, the _______ and ________ get tied together at an AC power source,
but only at a source of AC power.
the inverter is operating in AC production mode
Inverters are only tied together when......
, 10 feet
A standard based issue states that in shore power systems overcorrect protection be located
no more than ______ from the point of inlet into the boat
Metal straps or clamps
All AC cables from the shore power inlet to the main shore power breakers shall be in
conduit or supported by means of____________
neutrals
Boats with more than one shore power inlet should never connect ________ together from
multiple inlets.
Galvanic isolator
What is the only device permitted to be installed in series with the AC grounding conductor
6
Durring an installation of an galvanic isolator conductors shall be supported and/or clamped
to relive strain within ______inches of isolator case
135
The galvanic isolator shall be provided with wiring terminals or wire leads for connection,
having an ampacity that is __________ percent of its nominal rating.
step up or step down voltage from one side of the transformer to the other
Isolation transformers offer engineers the ability to do what?
automatically deals with dock-side polarity issues
What does a polarization transformer automatically do?
Correct Answers
higher voltage increased capacity
2 or More batteries connected in series provides_________, or in parallel to
provide_________
hydrogen
Batteries gas of what
the engine negative terminal or the DC main negative bus
If an AC system is installed the main AC system grounding bus shall be connected to what?
isolation transformer isolates all current crying AC system conductors and the AC
drowning conductor, Polarization transformers do not isolate the AC grounding
conductor.
Difference between an isolation transformer and polarization transformer
800 100
A battery switch shall be installed in the positive conductors from each battery or battery
bank with a CCA rating greater than _____amperes or _____Ah if CCA is unavailable
green white
with 120Volt systems, the _______ and ________ get tied together at an AC power source,
but only at a source of AC power.
the inverter is operating in AC production mode
Inverters are only tied together when......
, 10 feet
A standard based issue states that in shore power systems overcorrect protection be located
no more than ______ from the point of inlet into the boat
Metal straps or clamps
All AC cables from the shore power inlet to the main shore power breakers shall be in
conduit or supported by means of____________
neutrals
Boats with more than one shore power inlet should never connect ________ together from
multiple inlets.
Galvanic isolator
What is the only device permitted to be installed in series with the AC grounding conductor
6
Durring an installation of an galvanic isolator conductors shall be supported and/or clamped
to relive strain within ______inches of isolator case
135
The galvanic isolator shall be provided with wiring terminals or wire leads for connection,
having an ampacity that is __________ percent of its nominal rating.
step up or step down voltage from one side of the transformer to the other
Isolation transformers offer engineers the ability to do what?
automatically deals with dock-side polarity issues
What does a polarization transformer automatically do?
