Master Electrician Exam Review (Latest
Update ) Questions & Answers
{Grade A} 100% Correct
What is the maximum run length of a 18AWG fixture wire that is tapped on to a 20 amp
branch circuit? - correct answer 50'
When the service disconnecting means is a power-operated switch or circuit breaker,
it shall be able to be opened by hand in the event of a - correct answer power supply
failure
Conductors are considered outside a buildings when they are buried under not less
than - correct answer 2 in of concrete
,In straight pull, the length of the box shall not be less than. ____times the trade size of
the largest raceway. - correct answer 8
At least one receptacle outlet shall be installed within of the top of a show window for
each 12 linear feet measured horizontally across its length - correct answer 18"
Ground-fault protection of equipment shall be provided fro solidly grounded wye
electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-
to..phase for each service disconnecting means rated - correct answer 1000A
Receptacle outlets in floors shall not be counted as part of the required
number of receptacle outlets unless located within ______ of the wall - correct answer
18"
,Exposed live parts of motors and controllers operating at or more between terminals
shall be guarded against accidental contact by enclosure or by location - correct
answer 50V
Lighting track shall not be installed less than______ above the finished floor except'
where protected from physical damage or where the track operates at less than 30 V
rms, open-circuit voltage - correct answer 5'
Each general care area patient bed location shall be provided with a minimum
of_______receptacles, which can be single, duplex, or a combination with each duplex
counting as two receptacles - correct answer 4
In a Dwelling Unit which appliance is allowed to have a 24" cord with attachment
ground plug? - correct answer Combination Range hood/ Microwave
oven
, At least_____ 125 V, single phase, 15 A or 20 A, duplex with ground-fault circuit
interrupter receptacle shall be provided in each elevator machine room and elevator
machinery space. - correct answer 1
Lighting systems covered by Article 411 shall have a power supply rated not more
than______and not more than 30V - correct answer 25A
Temporary electrical power and lighting installations shall be permitted for a period
not exceeding ____days for Christmas decorative lighting and similar purposes -
correct answer 90
Lighting systems operating at 30V or less shall not be·installed within_______of pools,
spas, fountains, or similar locatipns - correct answer 10'
Update ) Questions & Answers
{Grade A} 100% Correct
What is the maximum run length of a 18AWG fixture wire that is tapped on to a 20 amp
branch circuit? - correct answer 50'
When the service disconnecting means is a power-operated switch or circuit breaker,
it shall be able to be opened by hand in the event of a - correct answer power supply
failure
Conductors are considered outside a buildings when they are buried under not less
than - correct answer 2 in of concrete
,In straight pull, the length of the box shall not be less than. ____times the trade size of
the largest raceway. - correct answer 8
At least one receptacle outlet shall be installed within of the top of a show window for
each 12 linear feet measured horizontally across its length - correct answer 18"
Ground-fault protection of equipment shall be provided fro solidly grounded wye
electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-
to..phase for each service disconnecting means rated - correct answer 1000A
Receptacle outlets in floors shall not be counted as part of the required
number of receptacle outlets unless located within ______ of the wall - correct answer
18"
,Exposed live parts of motors and controllers operating at or more between terminals
shall be guarded against accidental contact by enclosure or by location - correct
answer 50V
Lighting track shall not be installed less than______ above the finished floor except'
where protected from physical damage or where the track operates at less than 30 V
rms, open-circuit voltage - correct answer 5'
Each general care area patient bed location shall be provided with a minimum
of_______receptacles, which can be single, duplex, or a combination with each duplex
counting as two receptacles - correct answer 4
In a Dwelling Unit which appliance is allowed to have a 24" cord with attachment
ground plug? - correct answer Combination Range hood/ Microwave
oven
, At least_____ 125 V, single phase, 15 A or 20 A, duplex with ground-fault circuit
interrupter receptacle shall be provided in each elevator machine room and elevator
machinery space. - correct answer 1
Lighting systems covered by Article 411 shall have a power supply rated not more
than______and not more than 30V - correct answer 25A
Temporary electrical power and lighting installations shall be permitted for a period
not exceeding ____days for Christmas decorative lighting and similar purposes -
correct answer 90
Lighting systems operating at 30V or less shall not be·installed within_______of pools,
spas, fountains, or similar locatipns - correct answer 10'
