Master Electrician L

Over 100 lbs. 110.75

Manhole covers shall be_____ to keep out of unqualified persons from being able to open the manhole

Orange. 110.15

On a 4 wire, delta connected three phase system, where the midpoint of one phase winding is grounded, The conductor with the higher phase voltage to ground must be durably and permanently marked with an outer finish_____ in color, or other effective means.

4" 225.14

Open conductors installed outside shall be separated from open conductors of all the circuits or systems by not less than _____ .

30 inches. 225.14 D1

Power conductors installed below communication conductors shall provide a horizontal climbing space not less than

An insulated grounding conductor of_____ or smaller shall be identified by a contiguous white or gray outer finish or by three continuous stripes other than green insulation it's entire length

8 AWG 200.6a

Individual

A branch circuit that supplies only one utilization equipment is a______ branch circuit.

115%. 440.12

A disconnecting means that serves a hermetic refrigerant motor compressor , shall have an amp hour rating of at least_____ percent of the nameplate rated load current or branch circuit selection current , which ever is greater

700. NYC 408.60 E

A service switchboard sized over 5000 A with a 100% rating shalI have copper bus bars sized on an ampacity of_____ amps per square inch.

25 feet. 210.63

All 15 or 20 amp 125 V receptacle outlets shall be located within_______ of heating, air-conditioning , and refrigeration equipment for all occupancies.

15

An electrician assigns men to install outlets in a room. It takes 2.6 hours to install outlets in each room. At the end of five days, how many rooms are completed? Assume the men work eight hours per day

$27.00. ( profit - cost x %overhead)

An electrician buys 100 units of armored cable connectors. He purchases them at a cost of $2.10 each. He then sells them at a cost of three dollars per unit. Assuming his overhead is 30% what is his profit?

30 " / 6 1/2'. NYC 110.33

At least one entrance to enclosures for electrical installations shall not be less than _____ wide and _____ high shall be provided to give access to the working space around your school equipment over 600 V nominal.

125%. 430.22a

Branch circuit conductor that supply a single motor used in a continuous duty application shall have an ampacity of not less than _____ percent of the motors full load current

3 inches. 410.68

Branch circuit conductors within______ Of a ballast shall have an insulation temperature rating not lower than 90°C or 194°F

CL2 and CL3. 725.179

Class two and class three cables listed as suitable for general purpose use , with the exception of risers ducts, plenums ,and other spaces used for environmental air shall be type_____

#14 AWG. 800.100

Communications circuits so I have a minimum grounding conductor of______

8 800.44b

Communications wires and cables shall have a vertical clearance of not less than_____ Feet from all points of roofs above which they pass

35KV 450.21

Dry type transformers installed indoors rated over_____ shall be installed in a vault.

4. 517.18b

Each general care area patient bed location shall be provided with a minimum of_____ receptacles, Which can be single, duplex, or a combination of both

18/4. 625.29b

Electric vehicle supply equipment locations, when the site is indoors , the coupling means of the electric vehicle supply equipment shall be stored or located at a height of not less than_____ inches and not more than______ feet above the floor level.

6" 210.6a

Equipment associated with the electrical installation can be located above or below other equipment within their working space when the associated equipment does not extend more than_____ from the front of the electrical equipment.

1 1/2 inches. 390.3 b

Flat top underfloor raceways over 4 inches but less than 8 inches wide with a minimum 1 inch spacing between raceways, shall be covered with concrete to a depth of not less than 1 inch. Raceways spaced less than 1 inch apart shall be covered with concrete to a depth of_____

48 times. 314.71a

For Straight pulls , the length of a pull box shall not be less than_____ Times the outside diameter,over the sheath, of the largest shielded or lead covered conductor or cable entering the box on systems over 600 V

8. NYC 110.31

For installations other than enclosed equipment accessible to unqualified persons, a wall screen or fence shall be used to enclose an outdoor electrical installation to defer access by persons who are not qualified , the height of the fence should be in total of____ feet.

180 VA. 220.14 i

For other than dwelling occupancies, banks ,or office buildings , each receptacle outlet shall be calculated at not less than_____.

18.5'. 225.60

For roads streets and other areas subject to truck traffic the minimum clearance of a 22KV overhead line shall be

36 inches 408.18

For switchboards that are not totally enclosed ,a space of_____ or more shall be provided between toe top of the switchboard and any combustible ceiling.

Parallel. 240.8

Fuses and circuit breakers shall be permitted to be connected in_____ where they are factory assembled in parallel and listed as a unit.

9 circuits. 220.14g (200VA per foot) (continuous load(125%))

How many 20 amp branch circuits are required for 80 linear feet of show window lighting?

12 314.17( chart )

How many number 10 conductors can be legally installed in a 4 in. Square box 2 1/8 inch deep?

1 NYC 210.52

How many receptacles are required within the perimeter of a balcony deck or porch with a usable area of last and 20 ft.²

2-3 ways and 3-4 ways

How many switches will be needed to control a light fixture from five different locations?

Shall Not be opened under load/ Isolating switches. 404.6/404.13

Knife switches rated for more than 1200 A at 250 V or less , and that over 600 A at 251 to 600 V , shall be used only as

Cable trays. NYC 328.12

MV (medium voltage) Cable rated 35KV cannot be installed in:

Shall or shall not. 90.5

Mandatory rules of this code are those that identify actions that are specifically required or prohibited, use the term as_____

30 inches above. 225.14 d 2

Power conductors on poles must have a separation of not less than_____ from the communications conductors when the power is greater than 300 V

#10 AWG. NYC 230.31B

Service lateral conductors that supply power to limited loads of a single branch circuit - such as a small poly phase power, controlled water heaters and similar loads shall not be smaller than

5. 320.24

The 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_____ times of the diameter of the type AC cable.

Main bonding

The connection between the grounded conductor and the equipment grounding conductor at the service is accomplished by installing a______ jumper.

In a straight line. 800.100(5)

The grounding of communications wires should be run to the grounding electrode_____

1/2 square inch. NYC 408d

The internal bonding bus of a multi section switchboard shall have a cross sectional area of _____

5000. 220.54

The load for electric clothes dryers in a dwelling unit shall be______ watts or the nameplate rating, which ever is larger, per dryer.

200 VA. 220.43

The minimum feeder load for show window lighting is_____ per linear foot.

6 1/2 '

The minimum headroom of working spaces about motor control centers is _____ .

10. ( time constant (seconds) over resistance times capacitor)

The value in M ohms of a resistor required to discharge a 30 µF capacitor to safe levels , in the time required by the New York City electrical code that has been energized to 650 V is most nearly

Greatest

The voltage of a circuit is defined by the code as the______ RMS (foot mean squared) or effective difference of potential between any conductors of the circuit.

12 300.50 table note D

Underground service conductors that are not in case in concrete and then I'll bury 30 inches or more below grade so I have their location identified by a warning ribbon that is placed in the trench at least_____ inches above the underground installation for 40 KV

Capacitor

What is not considered a power supply?

HP. 110.21. 130.109a

What is not listed on a motor disconnect switch?

The size of the bulb. ( included is shape,base and type of service)

What is not part of the classification of an incandescent lamp ?

Voltage. 725.179L

What is not required to be marked on signaling wiring or cable?

10,000 amps

What is the interrupting capacity of a class H fuse?

4 feet. 300.22b

What is the maximum length of flexible metal conduit allowed in ducts or plenums used for environmental air that is physically connected to equipment and permitted to be used in ducts or plenum chambers?

4 inches. 680.23 (5)

What is the minimum distance a wall-mounted luminaire can be mounted below the surface of the water in a pool?

12'. 230.24b

What is the minimum height for a vertical overhead clearance for a service drop conductor over a residential property and driveways with garage not subject to truck traffic where a voltage does not exceed 300 V to ground.

3. 517.19b(1)

What is the minimum number of duplex receptacles required for each patient bed in the critical care area of a hospital ?

#8 AWG 230.23b

What is the minimum size overhead service drop conductors in copper?

8" NYC 450.42

What is the minimum thickness of a transformer vault floor made up with bricks or cement fill blocks ?

4000 watts (KVA x PF = KW)

What is the output in kilowatts of a 5000 KVA transformer feeding a load that has a power factor of 80%

10,000 amps. (KVA/ExIxZ( impedance))

What is the short circuit capacity of a 72KVA transformer with a 240 V secondary and an impedance of 3%

1200 amperes 110.26 C2

When an equipment room houses electrical equipment rated at least_____ or more, the personnel doors intended for entrance to and egress from the working space shall open in the direction of egress.

Enclosed gasketed types. 300.22b

When are lights permitted to be installed in ducks or plenums used for environmental air?

6'. 680.22. 680.34

When installing receptacles around the pool they should be set back on the inside walls of not less than______

Not allowed in NYC (because of EMT, otherwise 7'6"). 680.43b

When mounting a light fixture supported by EMT over a hot tub protected by GFCI must have a height of_____

Not allowed in bathrooms ( the receptacle). 410.151.a

When shall it permitted to use track lighting ,with receptacles at each end , in a public bathroom?

Double

When three resistors are connected in series and amperage of 10 A is achieved. When an equal resistor is connected in parallel with the existing three resistors ,the ampere reading will_____

20 amp fuse or circuit breaker. 240.6 d 5. 310.16

When using #12 THHN orTHWN which are both rated for 90° , and when you look at table 310.16, what is the minimum overcurrent protection that can be used for general wiring?

Copper insulated solid or stranded. NYC 800.100 (a)3

When using a grounding conductor it should not be smaller than #12 ______

Liquid tight flexible metal conduit. 555.1.13

Where a boat house is using a ramp that is movable because of the water level changing with the tides what wiring type of raceway would you use at the hinges ?

The building has four dwelling units or less. NYC 230.70a

Service switches may be installed on the outside of a building only if_____

12/40. 800.44

Where communications wires and cables and electric light or power conductors are supported by the same pole and are run parallel to each other in span, the supply service jobs of 0 to 750 volts running above and parallel to communications service drops shall have a minimum separation of_____ inches at any point in the span, including the point of and at their attachment to the building, provided the non-grounded conductors are insulated and that a clearance of not less than_____ inches is maintained between the two services at the pole.

6'. 800.53

Where practicable a separation of at least_____ feet shall be maintained between communication wires and cables on buildings and lightning conductors

5/7 NYC 110.2b 230.64 b

Where service equipment totaling 1000 kVA or larger is installed separately or as part of a switchboard the room in which such switchboard is located shall be constructed of non-combustible materials having a two hour fire rating and should be of dimensions adequate to house the switchboard and to provide the following minimum clearances. At least_____ feet in front of the switchboard if is in one line and at least_____ feet in front of the board if boards are installed facing each other.

12. 230.64

Where service equipment totaling 1000 kVA or larger is installed separately or as part of a switchboard the room in which such switchboard is located shall be constructed of non-combustible materials having a two hour fire rating as Shelby of dimensions are good to house the switchboard and to provide the following minimum clearances: At least _____ inches from the floor to any energized part of the switchboard except by special permission

Separate branch circuit/ GFCI line side. 620.23. 620.24

what kind of circuit must the sump pump and lights in the elevator pit be connected to?