300 - 409
What is the minimum size solid copper conductor approved for bonding pool equipment? A. #8 AWG C. #10 AWG B. #4 AWG D. #6 AWG
A. #8 AWG 680.26(B)
Stranded ampere rating for fuses shall be: A. 1, 3, 6, 10, and 601 C. 1, 5, 7 B. 2, 4, 8 D. 55, 65, 75
A. 1, 3, 6, 10, and 601 240.6
- A single gang nonmetallic requires a minimum _____ inches of conductor to be extending outside of the outlet box: A. 3 C. 8 B. 6 D. 10
A. 3 General Knowledge
When installing six number twelve conductors in EMT conduit, by what percentage must the conductors be derated? A. 80% C. 50% B. 70% D. 45%
A. 80% Table 310.15(B)(2)(a)
Where installed, Surge Arresters shall be connected to: A. Each ungrounded conductor B. The grounding conductor C. The grounded conductor D. Both A and B
A. Each ungrounded conductor 280.3
A system intended to provide protection of equipment from damaging line-to-ground fault currents by opening all ungrounded conductors of the faulted circuit at current levels less than the supply circuit overcurrent device defines the term _____. A. Ground-fault protection of equipment C. Guarded B. Personal protection D. Automatic protection
A. Ground-fault protection of equipment Article 100 - Definitions
The screw shell of a luminaire or lampholder shall be connected to the _____. A. Grounded conductor C. Ungrounded conductor B. Equipment grounding conductor D. Forming shell terminal
A. Grounded conductor 200.10(C); 410.50
- No _____ shall be attached to any terminal or lead so as to reverse designated polarity. A. Grounded conductor C. Ungrounded conductor B. Grounding conductor D. Grounding connector
A. Grounded conductor General knowledge
GFCI protection shall be provided for all 15A and 20A, 125V receptacles in dwelling unit accessory building that have a floor located at or below grade level not intended as _____ and limited to storage areas, work areas, or similar use. A. Habitable rooms C. A or B B. Finished space D. None of these
A. Habitable rooms 210.8(A)(2)
Electric signs and outlet lighting systems shall be marked with the manufacturers name or other means of identification and __________. A. Input voltage and current rating B. Total resistance of equipment C. KVA rating D. Year manufactured
A. Input voltage and current rating 600.4(A)
GFCI protection shall be provided for all 15A and 20A, 125V receptacles _____ in dwelling unit kitchens. A. Installed to serve the countertop surfaces B. Within 6 ft. of the sink C. For all receptacles D. That are readily accessible
A. Installed to serve the countertop surfaces 210.8(A)(6)
The highest current at rated voltage that a device is intended to interrupt under standard test conditions is the _____. A. Interrupting rating C. Interrupting capacity B. Manufacturer's rating D. Withstand rating
A. Interrupting rating Article 100 - Definitions
A building or structure shall be supplied by a maximum of _____ feeder(s) or branch circuit(s), unless specifically permitted otherwise. A. One C. Three B. Two D. Four
A. One 230.2
Outside wiring, such as, _____ shall not be installed beneath openings through which materials may be moved, and shall not be installed where they will obstruct entrance to these buildings' openings. A. Overhead branch-circuit and feeder conductors B. Underground branch-circuit and feeder conductors C. Lateral branch-circuit and feeder conductors D. None of these
A. Overhead branch-circuit and feeder conductors 225.19(D)(3)
A GFCI device is used for protection of: A. Personnel C. Equipment B. Conductors D. Services
A. Personnel Article 100 - Definitions
Besides the manufacturer's name, rated voltage, and full load amps, what information is also required on a motor's nameplate? A. Rated full load speed C. Min. conductor size B. Listing agency D. Min. E.G.C. size
A. Rated full load speed 430.7(A)(4)
Overhead _____ conductors shall not be installed beneath openings through which materials may be moved and shall not be installed where thay will obstruct entrance to these buildings' openings. A. Service C. Overcurrent B. Lateral D. None of these
A. Service 230.9(C)
In a multiple-occupancy building, each occupant shall have access to the occupant's _____. A. Service disconnecting means B. Service drops C. Distribution transformer D. Lateral conductors
A. Service disconnecting means 230.72(C)
The capacity and rating for an emergency system shall have adequate capacity and rating for all loads to be operated _____. The emeregency system equipment shall be suitable for the maximum fault current. A. Simultaneously C. Individually B. At the rated voltage D. At the rated current
A. Simultaneously 700.5(A)
- How is an isolated ground receptacle identified? A. Green triangle C. Green Dot B. Orange triangle D. Orange receptacle
B Orange triangle General Knowledge
Ceiling paddle fans installed above swimming pools within 5 feet from the inside walls of the pool shall not be less than _____ feet above the water level. A. Are not allowed C. 10 B. 12 D. 14
B. 12 680.43(B)(1)(a)
Communication service drops shall maintain a minimum separation of _____ inches from supply service drops at any point in the span including the point of attachment. A. 6 C. 8 B. 12 D. 16
B. 12 800.44(A)(4)
Power and Control Tray Cable: Type TC with a metallic shielding shall have a minimum bending radius of not less than _____ the cable diameter. A. 18 times C. 24 times B. 12 times D. 6 times
B. 12 times 336.24
What is the minimum cubic volume for a box size of 4-11/16" x 2-1/8" square? A. 29.5 cu. in. C. 25.5 cu. in. B. 42 cu. in. D. 18 cu. in.
B. 42 cu. in. Table 14.16(A) (70-169)
Permanently installed swimming pools are constructed in the ground or partially in the ground and capable of holding water a depth greater than: A. 36" C. 24" B. 42" D. 12"
B. 42" 680.2
A grounded electrode conductor sized smaller than #_____ shall be in rigid metal conduit, intermediate metal conduit, rigid nonmetallic conduit, electrical nonmetallic tubing, or cable armor. A. 2 C. 4 B. 6 D. 8
B. 6 250.64(B)
What is the current of a 40 KW heater operating at 480 volts, 3 phase? A. 48.19 Amps C. 166.6 Amps B. 83.33 Amps D. 27 Amps
B. 83.33 Amps Theory:W=V x A... 40000W=480VA;A=40000/480=83.33
- An electrician removed the dead front cover of a service of a single family dwelling and discovers a white conductor connected to a single pole 15 amp breaker and connected to the neutral bus. What has been discovered? A. Potential direct short C. Potential breaker B. Arc Fault Circuit Breaker D. Metering Device
B. Arc Fault Circuit Breaker General Knowledge
Conductor sizes are expressed in American Wire Gauge (AWG) or _____. A. Inches C. Square inches B. Circular mils D. AWG
B. Circular mils 110.6
Cables are considered _____ if rendered inaccessible by the structure or finish of the building. A. Inaccessible C. Hidden B. Concealed D. Enclosed
B. Concealed Article 100 - Definitions
The _____ of any system is the ratio of the maximum demand of a system, or part of a system, to the total connected load of a system. A. Load C. Minimum load B. Demand factor D. Calculated factor
B. Demand factor Article 100
The voltage of a circuit is defied by the Code as the _____ root-mean-square (effective) difference of potential between any two conductors of the circuit. A. Lowest C. Average B. Greatest D. Nominal
B. Greatest Article 100 - Definitions
- Parallel circuit loads are connected: A. One after the other B. In combination C. Connected across separate legs D. Using the formula P=I/R
B. In combination General Knowledge
Illumination shall be provided for all working spaces about service equipment, switchboards, panelboards, and motor control centers _____. A. Over 600V C. Rated 1,200A or more B. Located indoors D. Using automatic controls
B. Located indoors 110.26(D)
A neutral conductor is the conductor connected to the _____ of a system, which is intended to carry neutral current under normal conditions. A. Grounding electrode C. Intersystem bonding termination B. Neutral point D. None of these
B. Neutral point Article 100 - Definitions
Overhead service cables shall be equipped with a _____. A. Raceway C. Cover B. Service head D. All of these
B. Service head 230.54(B)
The _____ is the point of connection between the serving utility and the premises wiring. A. Service entrance C. Overcurrent protection B. Service point D. Beginning of wiring system
B. Service point Article 100 - Definitions
"Connected to ground without the insertion of any resistor or impedance device" is _____. A. Grounded C. Effectively grounded B. Solidly grounded D. Grounding conductor
B. Solidly grounded Article 100 - Definitions
Ground-fault protection of equipment shall not be required at a feeder disconnect if ground-fault protection is provided on the _____ side of the feeder and on the load side of any transformer supplying the feeder. A. Load C. Service B. Supply D. None of these
B. Supply 215.10, Exception #2
Which of the following conductor insulation types are both moisture and heat resistant? A. TW C. RHW B. THWN D. XHHW
B. THWN Table 310.13(A)
Receptacles installed in a dwelling unit kitchen to serve countertop surfaces shall be supplied by not fewer than ___ small- appliance branch circuits. A. One C. Three B. Two D. No minimum
B. Two 210.52(B)(3)
There shall be a minimum of _____ receptacle(s) installed outdoors at a one-family or two-family dwelling unit. A. One C. Three B. Two D. Four
B. Two 210.52(E)(1)
The number of receptacle outlets for guest rooms in hotels shall not be less than that required for a dwelling unit. These receptacles can be located to be convenient for permanent furniture layout, but at least _____ receptacle outlets shall be readily accessible. A. One C. Three B. Two D. Four
B. Two 210.60(B)
The white conductor within a cable can be used for the _____ conductor where permanently re- identified to indicate its use as an ungrounded conductor at each location where the conductor is visible and accessible. A. Grounded C. A & B B. Ungrounded D. None of these
B. Ungrounded 210.5(C); 215.12(C)
Electrical Nonmetallic Tubing is not permitted: A. Within buildings B. Where voltage is over 600 volts C. Above suspended ceilings D. Encased in poured concrete
B. Where the voltage is over 600 volts 362.12(6)
The correction factor for an ambient temperature of 104 degrees F is _____ for a 60 degree rated conductor. A. 0.71 C. 0.82 B. 0.88 D. 0.91
C. 0.82 (82%) 310.16
The minimum size service disconnecting means for a single family dwelling shall be: A. 30 Amperes C. 100 Amperes B. 60 Amperes D. 125 Amperes
C. 100 Amperes 230.79(C)
What is the required depth for rigid nonmetallic conduit 3" trade size installed in landscaping at a shopping center? A. 12" C. 18" B. 6" D. 24"
C. 18" Table 300.5
A metal pole shall have a hand hole not less than _____. A. 3" x 2" C. 2" x 4" B. 3" x 3" D. 4" x 4"
C. 2" x 4" 410.30(B)(1)
How many degrees of bend total are allowed between pull points for flexible metal conduit? A. 180 degrees C. 360 degrees B. 420 degrees D. No limit
C. 360 degrees 348.26
- What is the minimum number of threads required to be engaged in a fitting? A. 2 C. 5 B. 3 D. 6
C. 5 General Knowledge
A junction box above a suspended ceiling that has removable tiles is _____. A. Concealed C. Accessible B. Readily accessible D. Recessed
C. Accessible Article 100 - Definitions
Flexible cords approved for and used with a specific listed appliance or luminaire shall be considered to be protected by the branch-circuit overcurrent device when _____. A. Not more than 6 ft. in length B. 20 AWG and larger C. Applied within the listing requirements D. 16 AWG and larger
C. Applied within the listing requirements 240.5(B)(1)
Acceptable to the Authority Having Jurisdiction means _____. A. Identified C. Approved B. Listed D. Labeled
C. Approved Article 100 - Definitions
Electric-discharge fixtures shall be permitted to be cord connected if the fixture is located directly _____ the outlet box. A. Above C. Below B. Over D. Beside
C. Below 410.62(C)(1)(1)
A separate portion of a raceway system that provides access through a removable cover to the interior of the system, defines the term _____. A. Junction box C. Conduit body B. Accessible raceway D. Cutout box
C. Conduit body Article 100 - Definitions
Bonded can be described as _____ to establish electrical continuity and conductivity. A. Isolated C. Connected B. Guarded D. Separated
C. Connected Article 100 - Definitions
_____ are designed for surface mounting with a swinging door. A. Outlet boxes C. Cutout boxes B. Cabinets D. None of these
C. Cutout boxes Article 100 - Definitions
D. Establishes a connection Article 100 - Definitions
C. Device Article 100 - Definitions
A _____ is a single unit that provides independent living facilities for persons, including permanent provisions for living, sleeping, cooking, and sanitation. A. One-family dwelling B. Two-family dwelling C. Dwelling unit D. Multifamily dwelling
C. Dwelling unit Article 100 - Definitions
Non metallic-sheathed cable installed in factory, field punched, cut or drilled slots in metal members shall be protected by listed: A. Tie wire C. Grommets or bushings B. Tie wraps D. Not required
C. Grommets or bushings 300.4(B)(1); 334.17
Conductor terminal and splicing devices must be _____ for the conductor material and they must be properly installed and used. A. Listed C. Identified B. Approved D. Any of these
C. Identified 110.14
Why must an electrician check the ambient temperature prior to the installation of conductors in EMT across a roof top? A. To size the conduit properly B. Selecting correct type of conductor material C. Insure proper conductor insulation D. Phase to conductor insulation
C. Insure proper conductor insulation 310.15(B)(2)(c); Table 310.15(B)(2)(c)
What is the requirement for the fixed ladder that is required for access to vaults and tunnels over 600 volts? A. It shall be constructed of wood B. It shall be constructed of aluminum C. It shall be corrosive resistant D. It shall be constructed of copper
C. It shall be corrosive resistant 110.79
An outlet intended for the direct connection of a lampholder or a luminaire is a(n) _____. A. Outlet C. Lighting outlet B. Receptacle outlet D. General-purpose outlet
C. Lighting outlet Article 100 - Definitions
For the purpose of determining the placement of receptacles in a dwelling unit kitchen, a(n) _____ countertop is measured from the connecting edge. A. Island C. Peninsular B. Usable D. Cooking
C. Peninsular 210.52(C)(3)
The equipment bonding jumper on the supply side of services shall be sized according to the _____. A. Overcurrent device rating B. Service-drop size C. Service-entrance conductor size D. Load to be served
C. Service-entrance conductor size 250.102(C)
- The additional service disconnecting means for fire pumps, emergency systems, legally required standby, or optional standby services, shall be remote from the one to six service disconnecting means for normal service to minimize the possibility of _____ interruption of supply. A. Intentional C. Simultaneous B. Accidental D. Prolonged
C. Simultaneous
In a Class 1, Division 1 location, connection to all outlet boxes, fittings, and joints shall be: A. Glued C. Threaded B. Set screw D. Stainless steel
C. Threaded 501.10(A)(1)
Circuits and equipment operating at less than 50 volts shall not be smaller than conductor size: A. #14 AWG C. #8 AWG B. #10 AWG D. #12 AWG
D. #12 AWG 720.4
When receptacles are installed in office furnishings, individual partitions or groups of interconnected individual partitions shall not contain more than _____ 15 ampere, 125-volt receptacle outlets. A. 10 C. 15 B. 12 D. 13
D. 13 605.8(C)
In dwelling units, the voltage between conductors that supply the terminals of _____ shall not exceed 120V, nominal. A. Luminaires B. Cord-and-plug-connected loads of 1,440 VA or less C. Cord-and-plug-connected loads of more than ¼ hp D. A & B
D. A & B 210.6
Electrical nonmetallic tubing is permitted: A. For direct Earth burial B. For support of fixtures C. In hazardous locations D. Above supported ceilings
D. Above supported ceilings 362.10(5)
Unless identified for use in the operating environment, no conductors or equipment shall be _____ having a deteriorating effect on the conductors or equipment. A. Located in damp or wet locations B. Exposed to fumes, vapors, or gases C. Exposed to excessive temperatures D. All of these
D. All of these 110.11
Article 200 contains the requirements for _____. A. Identification of terminals B. Grounded conductors in premises wiring systems C. Identification of grounded conductors D. All of above
D. All of these 200.1
The Code provides rules for the minimum number of receptacle outlets in a dwelling unit. The minimum required receptacle outlets shall be in addition to receptacle outlets that are _____. A. Part of a luminaire or appliance B. Switched by a wall switch for use as required illumination C. Located more than 5-1/2 ft above the floor D. All of these
D. All of these 210.52
All 15A and 20A, 125V receptacles _____ of commercial occupancies shall have GFCI protection. A. In bathrooms C. In kitchens B. On rooftops D. All of these
D. All of these 210.8(B)
Local metal underground systems or structures such as _____ are permitted to serve as grounding electrodes. A. Piping systems B. Underground tanks C. Underground metal well casings D. All of these
D. All of these 250.52(A)(1)
Premises wiring includes _____ wiring from the service point or power source to the outlets. A. Interior C. Underground B. Exterior D. All of these
D. All of these Article 100 - Definitions
In a dwelling unit, illuminational for outdoor entrances which have grade-level access can be controlled by _____. A. Remote C. Automatic control B. Central D. Any of these
D. Any of these 210.70(A)(2)(b)
Grounding conductors and bonding jumpers shall be connected by _____. A. Listed pressure connectors B. Terminal bars C. Exothermic welding any of these D. Any of these
D. Any of these 250.64(F)(3)
The grounding conductor connection to the grounding electrode shall be made by _____. A. Listed lugs C. Listed pressure connectors B. Exothermic welding D. Any of these
D. Any of these 250.70
Grounded electrical systems shall be connected to earth in a manner that will _____. A. Limit voltages due to lightning, line surges, or unintentional contact with higher-voltage lines B. Stabilize the voltage-to-ground during normal operation C. Facilitate overcurrent device operation in case of ground faults D. Both A & B
D. Both A & B 250.4(A)(1)
Mineral-insulated, Metal-Sheathed Cable is not permitted to be installed in: A. Power circuits B. Hazardous locations C. Outdoor locations D. Destructive or corrosive conditions
D. Destructive or corrosive conditions 332.12(2)
A solderless pressure connector is a device that _____ between conductors or between conductors and a terminal by means of mechanical pressure. A. Provides accessB. Protects wiring C. Is never neededD. Establishes connection
D. Establishes a connection Article 100 - Definitions
A device comprised of _____ or more receptacles shall be calculated at not less than 90 VA per receptacle. A. One C. Three B. Two D. Four
D. Four 220.14(I)
Ground fault circuit interrupter protection is required for each 125-volt, single phase, 15- or 20-ampere receptacle for personnel at Park Trailers for all except which location? A. Kitchen counter tops B. Within 6' of any lavatory or sink C. On the exterior of the unit D. Garage
D. Garage 552.41(C)
Where grounded conductors of different systems are installed in the same raceway, cable, box, auxiliary gutter, or other enclosure, each grounded conductor shall be ____ by the system. A. Listed C. Green B. Insulated D. Identified
D. Identified 200.6(D)
- Underwriter Laboratories is a recognized testing laboratory that tests materials to a: A. Minimum standard B. Maximum standard C. Average D. Manufacturers standard
D. Manufacturers standard General Knowledge
A building that contains three or more dwelling units is called a _____. A. One-family dwelling B. Two-family dwelling C. Dwelling unit D. Multifamily dwelling
D. Multifamily dwelling Article 100 - Definitions
A 15 amp rated receptacle is permitted to be installed on a 20 amp branch circuit when: A. Receptacles are GFCI protected B. More than one receptacle is installed C. Receptacles are Arc Fault Protected D. Never
D. Never 210.21(B)(1)
- The use of a megohm meter on conductors is to ensure that no nicks or cuts occurred on the insulation during installation of the conductors, which of the following is not a correct method? A. Phase to phase C. Phase to neutral B. Phase to ground D. Phase to conductor insulation
D. Phase to conductor insulation General Knowledge
A building or other structure served shall be supplied by only one service, additional services shall be permitted to supply all but which system? A. Fire pumps B. Legally required standby systems C. Emergency systems D. Photovoltaic systems
D. Photovoltaic systems 230.2(A)
Where isolated metal water piping systems are installed in a multi- family building, the water pipes can be bonded with bonding jumpers sized per Table 250.122, based on the size of _____. A. Service-entrance conductors B. Feeder conductors C. Rating of the service equipment overcurrent device D. Rating of overcurrent device supplying the occupancy
D. Rating of overcurrent device supplying the occupancy 250.104(B)
Fixtures installed in wet or damp locations shall be labeled: A. Suitable for dry locations B. Not required to be listed C. Suitable for dry and damp locations D. Suitable for wet or damp locations
D. Suitable for wet or damp locations 410.10(A)
NPLFP-CI Fire Alarm Cable is used to ensure _____ of critical circuits during a specified time under fire conditions. A. Continuity C. Guarding B. Shielding D. Survivability
D. Survivability Article 760 - Fire Alarm Systems
A load is considered to be continuous if the maximum current is expected to continue for _____ or more. A. One-half hour C. One hour B. Two hours D. Three hours
D. Three hours Article 100 - Definitions
Nonmetallic Wireways are not permitted in which of the following installations? A. Wet locations B. Only for exposed work C. Subject to corrosive environments D. Where exposed to sunlight
D. Where exposed to sunlight 378.12(3)
- Which of the following is not permitted to be used as an support of Rigid Metal Conduit? A. Two hole strap C. Minerallic strap B. Unistrut strap D. Wire
D. Wire General knowledge because wire is "not approved" as a means of strapping