Examen
MASTER ELECTRICIAN EXAM REVIEW QUESTIONS
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MASTER ELECTRICIAN EXAM REVIEW QUESTIONS
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MASTER ELECTRICIAN EXAM REVIEW QUESTIONSbranch circuit - Answers- That portion of a wiring system extending beyond the final
overcurrent device is called the:
Calculated load - Answers- The final sum of the computed loads, based on the
minimum code requirements, is the
Resistance - Answers- As compared to #10, a #8 wire of the same Iength has less:
0.001 inch - Answers- One circular mil is the area of a circle whose diameter is:
1,000,000 cm - Answers- A round bus-bar one inch in diameter, has a circular mil area
of:
carnival is not required for equipment at circuit if the receptacle is of the
____________type
not less than 1 1/4 in. from - Answers- Where cables or nonmetallic raceways are
installed through bored.holes in joists, rafters, or wood members;holes shall be bored so
that the edge of the hole is the nearest edge -of the wood member.
located on a balcony accessible only to qualified persons
located in a room only accessible to
qualified persons
elevated 8 ft or more above floor or other working surface - Answers- To guard live
parts over 50V but less than 600V, equipment is permitted to be
12Ft - Answers- Overhead feeder conductors shall have a minimum __________
vertical clearance over residential property and driveways, as well as those commercial
areas not subject to truck traffic, where the voltage is limited to 300 volts-to-ground.
36 inches - Answers- Where rear access is required to work on de-energized parts on
the back of enclosed equipment, a minimum working space of horizontally shall be
provided.
50' - Answers- What is the maximum run length of a 18AWG fixture wire that is tapped
on to a 20 amp branch circuit?
power supply failure - Answers- 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
2 in of concrete - Answers- Conductors are considered outside a buildings when they
are buried under not less than
, 8 - Answers- In straight pull, the length of the box shall not be less than. ____times the
trade size of the largest raceway.
four times as great - Answers- A copper wire with twice the diameter of another wire
has a current carrying capacity:
10.4 - Answers- The specific resistance of copper wire @ 20° C in ohms per circular mil
ft. is
permit current to flow - Answers- Conductance of an electric circuit is that property that
will:
1O ohms - Answers- The equivalent value of 0.1 mho is
directly proportional to its length - Answers- The resistance of copper wire is:
Feeder - Answers- The portion of a wiring system between a point of distribution and
the branch circuit overcurrent device is
locking - Answers- GFCI protection at a
18" - Answers- 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
1000A - Answers- 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
18" - Answers- Receptacle outlets in floors shall not be counted as part of the required
number of receptacle outlets unless located within ______ of the wall
50V - Answers- Exposed live parts of motors and controllers operating at or more
between terminals shall be guarded against accidental contact by enclosure or by
location
5' - Answers- 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
4 - Answers- 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
Combination Range hood/ Microwave
oven - Answers- In a Dwelling Unit which appliance is allowed to have a 24" cord with
attachment ground plug?
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