Exam (elaborations)
NYC MASTER ELECTRICIAN EXAM
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NYC MASTER ELECTRICIAN EXAM
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NYC MASTER ELECTRICIAN (ACTUAL) EXAM—— Cartridge fuses of the renewable type shall be permitted to be used only for
replacement in existing installation is where there is no evidence of over-fusing or
tampering. - ANS-Class H
A 100HP DC motor at 220V with 90% efficiency requires a fuse size of ? 600A - ANS-
A 15A or 20A 125V receptacle outlet shall be located within 25 feet of heating, air
conditioning, and refrigeration equipment for : dwelling, commercial, industrial,
occupancies. - ANS-
A branch circuit that supplies only one utilization equipment is a individual branch
circuit. - ANS-
A disconnecting means that serves a hermetic refrigerant motor compressor shall have
an ampere rating of at least 115% of the nameplate rated load current to branch circuit
selection current, whichever is greater. - ANS-
A door used by personnel to exit the work space that is less than 25' feet from the
working space shall, swing outward with simple pressure. - ANS-
A fixed storage type water heater of 120 gallons or less shall be considered a
continuous, load and the branch circuits conductors shall have an ampacity of ____ %
of the nameplate current rating - ANS-125%
A hospital is a building or portion there of used for medical, psychiatric, obstetrical, or
surgical care, on a 24-hour basis, of four or more patients - ANS-
A hospital is a building or portion thereof used for medical, psychiatric,obstetrical , or
surgical, care on a 24 hour basis of ____ or more patients - ANS-Four
A limited care facility is an area used on a ____hour basis for the housing of four or
more persons who are incapable of self-preservation because of age, physical limitation
due to accident or illness, or mental limitations, mental illness, or chemical dependency.
- ANS-24hr
A load demand factor of 75% is permitted for four or more appliances fastened in place
such as waste disposal, dishwashers, trash compactors, water heater, etc, - ANS-
A multi family building has 12 units. The system voltage is 120/240V, single-phase.
Each 1,500 sq ft unit contains the following:
Dishwasher 1.50 kva
Water Heater 4kw
,Dryer 4.50 kW
Washing Machine 1.20 KVA
Range 14.45 kw
A/C (230V) 3hp
A/C fan motor 1/8 hp (334)
Heat 5kw - ANS-
A separate branch circuit shall supply the elevator hoistway pit lighting and receptacle.
The required lighting shall not be connected to the load side of a ground-fault circuit
interrupter. - ANS-
A separation of at least ____ is required between network communication cable and
power cables. - ANS-4" (830)
A separation of at least ____ft shall be maintained between communication wires and
cables on buildings and lighting conductors, where practicable. - ANS-6'ft
A service switchboard sized over 5000A with a 100% rating shall have copper bus bars
sized on an ampacity of 700'ft per square inch. - ANS-
A storage battery supplying emergency lighting and power shall maintain not less than
87.5% of full fault is that total low for a period of at least 1.5 hours - ANS-
AC or DC general use snap switches may be used for control of inductive loads not
exceeding ____of the ampere rating of the switch at the applied voltage. - ANS-50%
Access opening in a manhole shall be not less than 26" - ANS-
According to the NEC, bare live parts are guarded from the public in the following
methods except? Protected by fireproof curtain - ANS-
Alternating- current general-use snap switches are permitted to control- resistive and
inductive loads that do not exceed the ampere and voltage rating of the switch,
tungsten-filament lamp loads that do not exceed the ampere rating of the switch at
120V, motor loads that do not exceed 80% of the ampere and voltage rating of the
switch - ANS-
An electrician assigns men to install outlets in a room. It took 2.6 hours to install outlets
in each room. At the end of 5 days, how many rooms are completed? Assume the men
work 8hrs a day? 15 - ANS-
An electrician buys 100 units of armored cable connectors. He purchased them at the
price of $2.10 each. He then sells them at cost of $3.00 per unit. Assuming his
overhead is 30%, what is his profit. ? $27.00 - ANS-
, An insulated grounded conductor of #6AWG or smaller shall be identified by a
continuous white or gray outer finish, or by three continuous white stripe on other than
green insulated along its entire length - ANS-
An insulated grounded conductor of 6AWG or smaller shall be identified by a continuous
white or gray outer finish, or by three continuous white stripes on other than green
insulation along its entire length. - ANS-
As per New York City NEC in addition to the number of branch circuits required in a
dwelling unit an individual branch circuits shall be provided for each air conditioner
receptacle. - ANS-
At least one 125v, single phase, 15A or 20A, duplex receptacle shall be provided in the
elevator hoistway pit. - ANS-
At least one entrance to enclosures for electrical installations shall not be less than 30
inches wide and 6ft high shall be provided to give access to the working space around
the electrical equipment over 600V nominal. - ANS-
Audible and visual signal devices for an emergency system shall be provided,where
practicable, for the purpose(s) of indicating that - ANS-the battery is carrying load,
derangement of emergency source, that the battery charger is not functioning
Automatic transfer switches shall be ____ operated and ____ held - ANS-Electrically
operated and mechanically
Bending radius in type AC cable shall be made such that the cable is not damaged. The
radius of the curve of the inner edge of any bend shall not be less than 5 times the
diameter of the type AC cable. - ANS-
Branch circuit conductor that supply a single motor used in a continuous duty
application shall have a ampacity of not less than 125% of the motors full-load current. -
ANS-
Branch circuit conductors with in 3"inches of a ballast shall have an insulation
temperature rating not lower than 90C degree or 194F degree - ANS-
Branch circuit conductors within ____inches of the ballast shall have an insulation
temperature rating not lower it 90°C 194°F - ANS-3" inches
Branch circuit conductors within 3in. Of a ballast shall have an insulation temperature
rating not lower than 90 degrees celsius (194 degrees Fahrenheit) - ANS-
Cables with entirely nonmetallic sheath (ROMEX) shall be permitted to enter the top of
a surface mounted enclosure through one or more non flexible raceways not less than
18" - ANS-
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