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E1 RESIDENTIAL ELECTRICAL
INSPECTOR QUESTIONS WITH
CORRECT ANSWERS 2026
Electrical devices operating at less than ___ volts and not supplying more than ___ watts of energy shall be exempt from requiring an electrical permit. - correct answer-25, Section R105.2 Electrical # Who has the authority to give permission to provide temporary power? - correct answer-Building Official Section R107. A ______ conductor is a conductor that is encased within a material or has a thickness NOT recognized by the IRC as electrical insulation. - correct answer-Covered Definitions Section E3501 - Conductor, Covered
An approved enclosure shall be used to guard people against accidental contact with energized parts that operate at a minimum of ______ volts. - correct answer- 50 Section E3404. When splicing, terminating, or connecting a conductor to a fixture or device the minimum length of free conductor required at an outlet, junction box, or switch point shall be at least ____ inches?
- correct answer- 6 Section E3406.11. Electrical copper conductors used for feeders and branch circuits shall have a minimum size of ______. - correct answer-No. 14 AWG Section E3406. An overhead service conductor spanning over a driveway shall maintain a minimum vertical clearance of ____ feet from final grade. - correct answer- 12
True or False. The disconnecting means for an electrical service cannot be installed in a bathroom. - correct answer-True Section E3601.6. A metal underground water pipe must be in direct contact with the earth for a minimum of ___ feet to be considered as a grounding electrode. - correct answer- 10 Section E3608.1. A ground ring can be used as a grounding electrode if located a minimum ___ inches below the earth and at least ___ feet of bare copper wire no smaller than ___ AWG is used. - correct answer- 30, 20, 2 Section E3608.1. Two grounding rods used in one grounding electrode system must be located at least ___ feet apart. - correct answer- 6 Section E3608.
When a rod is used as a grounding electrode, it shall not be less than ___ feet in length. - correct answer- 8 Section E3608.1. When a rod used as a grounding electrode is buried in a trench, what must the minimum depth of the trench be? - correct answer- 30 Inches Section E3608.1.4. A supplemental grounding electrode is not required when the single grounding electrode provided has a resistance of ___ ohms or less to the earth. - correct answer- 25 Section E3608.4 Exception A minimum unit load of ___ volt-amperes shall be used to size feeder conductors for lighting and general use receptacle loads per square foot of floor area. - correct answer- 3
No. 14 copper conductors are permitted to have a maximum overcurrent protection device rating of many amps? - correct answer-15 amps Table E3705.5. Which of the following is considered to be a standard ampere rating for fuses? 25amps, 55amps, 75amps, 95amps - correct answer-25amps Section E3705. What is the minimum size a circuit conductor is required to be when a branch circuit having two or more outlets is rated at 20 amps? - correct answer-12 AWG Table E3702. Fixed utilization equipment shall be supplied with a minimum ___- ampere branch circuit. - correct answer- 30
Section E3702. True or False. An electric space heating and water heating appliance shall be considered as a continuous loads. - correct answer-True Section E3702. Lighting units are permitted to be supplied with either a ___- ampere or ___-ampere branch circuit. - correct answer-15, Section E3702. The ampacity of branch circuit conductors shall not be less than ___ percent of the motors full-load current rating when supplying a single motor. - correct answer- 125 Section E3702.
Section E3907. Cabinets and Panelboards installed in a wall of noncombustible material such as concrete or tile shall be installed to where the front edge of the cabinet is not set back more than ___ inch from the finished surface material. - correct answer-1/ Section E3907. Openings in which conductors enter ______ shall be closed in an approved manner. - correct answer-cabinets, panelboards, meter sockets Section E3907. Where cables are protected from physical damage by PVC rigid nonmetallic conduit, it shall be a minimum Schedule ___. - correct answer- 80 Section E3802.3.
Cables not sleeved yet exposed to direct sunlight shall be listed and marked as "______". - correct answer-Sunlight Resistant Section E3802.3. When determining the required number of receptacle outlets within a room, floor receptacle outlets cannot be counted unless they are located within ____ inches from the wall. - correct answer- 18 Section E3901.2. Bathrooms shall have at least one wall receptacle outlet installed within ___ inches of the outside edge of a lavatory basin. - correct answer- 36 Section E3901. Receptacle outlets shall be equipped with ground-fault circuit interrupter protection when located within ___ feet from the outside edge of a sink. - correct answer- 6
When thread-forming machine screws are used to connect grounding conductors to metal boxes, they shall be engaged not less than ___ thread(s) in the enclosure. - correct answer-Two Section E3908.15 # At no point shall an equipment bonding jumper on the load side of an overcurrent device be smaller than ____ AWG. - correct answer-No. 14 Section E3908. A trash compactor appliance listed to be connected with a flexible cord shall have a minimum cord length of ____ inches and a maximum cord length of ____ inches. - correct answer-36, 48 Table E4101. An electrical circuit that energizes signaling equipment is known as a _______. - correct answer-Signaling Circuit Section E4301 - Definitions
Switches and circuit breakers must be installed where the center of the grip of the operating handle of the switch or circuit breaker is located not more than ___ feet ___ inches above the working platform. - correct answer-6, 7 Section E4001. True or False. Snap switches that are rated for 20 amperes or less and directly connected to aluminum conductors must be marked CO/ALR. - correct answer-True Section E4001. Receptacles located more than ___ feet above the floor are NOT required to be tamper resistant. - correct answer-5. Section E4002.14 Exception # True or False. Metal faceplates for receptacles are NOT required to be grounded. - correct answer-False
A flexible cord for a cord-and-plug connected trash compactor must have a minimum cord length of ____ and maximum length of ____ inches. - correct answer-36, 48 Section E4101.3, Table E4101. Appliances and equipment shall be installed in accordance with which of the following? - correct answer-Manufacturer's installation instructions Section E4101. A ___ ampere-rated receptacle outlet servicing heating, air- conditioning and refrigeration equipment must be installed at an accessible location. - correct answer-15 & 20 Section E3901. A receptacle outlet servicing heating, air-conditioning and refrigeration equipment must be located on the same level and within ____ feet from the equipment. - correct answer- 25
Section E3901. Receptacles located within ___ feet from the inside wall of a swimming pool must be protected by a ground-fault circuit- interrupter. - correct answer- 20 Section E4203.1. At least one receptacle must be located between ___ feet and ___ feet from the inside wall of an indoor spa and hot tub. - correct answer-6, 10 Section E4203.1. Underground wiring installed in a rigid metal conduit and located within 5 feet horizontally from the inside wall of a swimming pool shall have a minimum burial depth of ___ inches. - correct answer- 6 Section E4203.7, Table E4203.
Section E3905.12.1, E3905.12.1.1, Table E3905.12. Boxes installed in openings of noncombustible surfaces with a flush-type cover or faceplate shall have no gap greater than ___ inch around the edge of the box. - correct answer-1/ Section E3906. Non-current-carrying metal parts of fixed equipment supplied by or enclosing conductors likely to become energized must be connected to the equipment grounding conductor when located within ___ feet vertically or ___ horizontally of the earth and where subject to contact by persons. - correct answer-8, 5 Section E3908.2 # True or False. Grounded Circuit conductors shall NOT be used for grounding noncurrent-carrying metal parts or equipment on the load side of the service disconnecting means. - correct answer- True Section E3908.
Flexible cords shall NOT run through which of the following locations? (Holes in a wall, suspended ceilings, dropped floors, all of the above) - correct answer-All of the above Section E3909. Type CL2X limited-use cables are permitted to be installed without a raceway when have a diameter less than ___ inch. - correct answer-1/ Section E4303.2. General-use snap switches that control motor loads shall not exceed ___ percent of the ampere rating of the switch at its rated voltage. - correct answer- 80 Section E4001.1 # True or False. When single-throw switches are operated vertically, the up position of the handle shall be in the off position.
