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E1 RESIDENTIAL ELECTRICAL INSPECTOR 2026
PRACTICE TEST QUESTIONS AND DETAILED
CODE COMPLIANCE BREAKDOWN FULL
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◉ Receptacles shall be installed so that no point along the floor line in any wall space is more than _________ feet, measured horizontally, from an outlet in that space. Answer: 6 Feet. This is the rule 6/12 rule: 6 feet from any door opening and every 12 feet after that, measure along the wall. 2015 IRC Section E3901.2.1 Spacing. ◉ Receptacles installed on 15- and 20-ampere-rated branch circuits shall be of the ___________ type. Answer: grounding. 2015 IRC Section E4002.2 Grounding type. ◉ In clothes closets, surface-mounted incandescent luminaires shall have _________ inches minimum clearance from the nearest point of storage space. Answer: 12 inches.
This is measured horizontally and changes to 6 inches for surface mounted/recessed fluorescent and recessed incandescent fixtures. 2015 IRC Section E4003.12 Luminaries in clothes closets, Item 1 ◉ Conductors in NM cable assemblies shall be rated at _________ Celsius. Answer: 90 degrees Celsius. The 90 degree Celsius rating shall be permitted to be used for ampacity correction and adjustment purpose provided that the final corrected or adjusted ampacity does not exceed that for a 60 degree Celsius rated conductor. 2015 IRC Section E3705.4.4 Conductors of Type NM cable. ◉ In calculating box fill, each No. 12 AWG conductor shall require ______________ cubic inches free space within the box. Answer: 2. cubic inches. 2015 IRC Table E3905.12.2.1 Volume Allowance Required Per Conductor.
◉ A minimum of one ____________-ampere-rated branch circuit shall be provided for receptacles located in the laundry area and shall serve only receptacle outlets in the laundry area. Answer: 20 ampere. Receptacles for appliances like the washer shall be located within 6 feet of the appliance location. See Section E3901. 2015 IRC Section E3703.3 Laundry circuit. ◉ Bonding shall be provided where necessary to ensure electrical ______________. Answer: continuity. and the capacity to conduct safely any fault current likely to be imposed. 2015 IRC Section E3609.1 General ◉ Switches shall not be more than _________________ feet _________________ inches above the floor or working platform when the switch is in its highest position. Answer: 6 feet 7 inches
Also applies to circuit breakers used as switches. 2015 IRC Section E4001.6 Access. ◉ the rating of any one cord-and-plug- connected utilization equipment shall not exceed ________ percent of the branch-circuit ampere rating. Answer: 80 percent. 2015 IRC Section E3702.3 Fifteen-and 20-ampere branch circuits. ◉ All mechanical elements used to terminate a grounding electrode conductor or bonding jumper to the grounding electrodes shall be __________________. Answer: accessible. When not buried or concrete encased. 2015 IRC Section E3611.2 Accessibility. ◉ Interior metal water piping located more than _________ feet from the point of entrance to the building shall not be used as part of the grounding electrode system. Answer: 5 feet.
2015 IRC Section E3401.2 Scope ◉ Recessed incandescent fixtures shall have _____________ protection. Answer: Thermal. Know the two exceptions in this section. 2015 IRC Section E4003.5 Recessed incandescent luminaries. ◉ A minimum of ___________ ___________ branch circuit shall be provided to supply the bathroom receptacle outlet(s). Such circuits shall have no other outlets. Answer: one 20-amp Read the exception in this section for supplying each bathroom with its own 20-ampere circuit. 2015 IRC Section E3703.4 Bathroom branch circuits. ◉ Connected to establish electrical continuity and conductivity. Answer: Bonded (Bonding) Know all of the bonding and grounding definitions.
2015 IRC Section E3501 Definitions. ◉ The markings for identification of disconnection means shall have the durability to withstand the _____________ involved. Answer: environment.
- IRC Section E3404.12 Identification of disconnection means, Item 4. ◉ In no case shall the point of attachment for service-drop conductors be less than______________ feet above finished grade. Answer: 10 feet. 2015 IRC Section E3604.3 Point of attachment. ◉ Above-ground service-entrance cables subject to physical damage shall be protected by Schedule ____________ PVC conduit. Answer: 80. or rigid metal conduit, intermediate conduit, electrical metallic tubing or other approved means. 2015 IRC Section E3605.5 Protection of all other service cables.
◉ Underground service laterals that are not encased in concrete and that are buried 18 inches or more below grade shall have their location identified by a ________________ _____________. Answer: warning ribbon. Placed in the trench at least 12 inches above the underground installation. 2015 IRC Section E3803.2 Warning ribbon. ◉ Kitchen countertop receptacles shall be installed so that no point along the wall line is more than ___________ inches from a receptacle. Answer: 24 inches. This is the 2/4 rule: 2 feet from any opening and every 4 feet after that. 2015 IRC Section E3901.4.1 Wall countertop space. ◉ At least one receptacle outlet in bathrooms is required to be within ________________ inches of each lavatory basin. Answer: 36 inches.
The receptacle shall be located no more than 12 inches below the top of the basin. 2015 IRC Section E3901.6 Bathroom. ◉ There shall be a wall switch at each floor to control stairway lighting where the stairway has ___________ or more risers. Answer: six. 2015 IRC Section E3903.3 Additional locations. ◉ Nonmetallic boxes shall be used only with cable wiring methods with entirely nonmetallic sheaths, flexible cords and nonmetallic raceways. Answer: True. read the two exceptions in this section. review tables E3904.6(1) through E3904.6(10) 2015 IRC Section E3905.3 Nonmetallic boxes. ◉ Unused openings in cabinets and panelboards shall be effectively _____________ to afford protection equivalent to that of the wall of the cabinet. Answer: closed.
2015 IRC Table E4101.3 Flexible Cord Length. ◉ Ceiling-suspended paddle fans shall be supported ________________ of the outlet box. Answer: independently. 2015 IRC Section E4101.6 Support of ceiling-suspended paddle fans. ◉ Insulated conductors and cables exposed to direct rays of the sun shall be listed and labeled as ______________ __________________. Answer: sunlight resistant. 2015 IRC Section E3802.3.3 Locations exposed to direct sunlight. ◉ Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a ______________ location. Answer: wet. Insulated conductors and cables installed in raceways in we locations above grade shall be listed for use in wet locations. 2015 IRC Section E3802.7 Raceways in we locations above grade. ◉ Chapter 11 regulates the ___________ efficiency for the design and construction of buildings regulated by this code. Answer: energy.
This chapter is extracted from the 2015 edition of the International Energy Conservation Code- Residential Provisions. 2015 IRC N1101.1 Scope. ◉ 50 Volts (3404.9) Answer: Energized parts operating at a minimum of (_____) shall be guarded against accidental contact by people through the use of approved enclosures. ◉ 36 inches (3405.2) Answer: An electrical panelboard requiring access while energized shall be provided with a minimum of (_____) in depth measured in the direction of access. ◉ 30 inches (3405.2) Answer: Work space in front of an electrical panelboard shall be a minimum of (_____) in width, but no less than the width of the panelboard. ◉ 6 feet (3405.3) Answer: The dedicated indoor space above an electrical panelboard shall be a minimum of (_____) high or to the structural ceiling, whichever is lower. ◉ No. 14 (3406.3) Answer: The minimum size of electrical conductors for feeders and branch circuits, when of copper, shall be (_____) AWG.
◉ 3 feet (3604.1) Answer: An open service conductor without an overall outer jacket shall have a minimum clearance of (_____) from the sides of doors, porches and openable windows. ◉ 8 feet (3604.2.1) Answer: An overhead service conductor shall have a minimum clearance above a 3:12 roof of (_____). ◉ 12 feet (3604.2.2 #2) Answer: Overhead service conductors shall have a minimum clearance of (_____) over residential property and driveways. ◉ 10 feet (3604.3) Answer: In all cases, the point of attachment of service drop conductors to a building shall be a minimum of (_____) above finished grade. ◉ 10 feet (3608.1.1) Answer: A metal underground waterpipe used as part of the grounding electrode system shall be in direct contact with the earth for a minimum of (_____). ◉ 6 feet (3608.3) Answer: Where more than one rod, pipe or plate electrode is used in one grounding electrode system, each electrode shall be locate a minimum of (_____) from any other electrode of another grounding system.
◉ 5/8", 8 feet (3608.1.4 #2) Answer: Where a grounding electrode is made of a stainless steel rod, the rod shall be a minimum of (_____) in diameter, and a minimum of (_____) in length unless listed. ◉ 18 inches (3610.2) Answer: Where used outside, an aluminum or copper-clad aluminum grounding electrode conductor shall be installed a minimum of (_____) from the earth. ◉ 80% (3702.3) Answer: The rating of any one cord- and plug- connected utilization equipment not fastened in place shall be a maximum of (_____) of the branch-circuit ampere rating. ◉ two 20-ampere-rated (3703.2) Answer: A minimum of (_____) branch circuit(s) shall be provided to serve receptacles located in the kitchen, pantry, breakfast area, and dining area. ◉ one 20-ampere-rated, one- 20 - ampere-rated (3703.3, 3703.4) Answer: A minimum of (_____) required branch circuit(s) shall be provided for receptacles located in the laundry room and a minimum of (_____) branch circuit(s) shall be provided to supply the bathroom receptacle outlet(s). ◉ three volt-amperes (3704.4) Answer: When sizing feeder conductors, a minimum unit load of (_____) shall constitute the minimum lighting and convenience receptacle load for each square foot of floor area.
◉ 3 feet (3604.2.1 exc.2) Answer: Electrical conductors located above a roof shall be installed with a minimum vertical clearance of (_____) where the roof has a slope of 8:12. ◉ 12 inches, 30 inches (3605.7) Answer: Service entrance cables shall be supported by straps or other approved means within (____) of every electrical service head and at maximum intervals of (_____). ◉ 30 inches (3608.1.5) Answer: A plate electrode installed as part of a grounding electrode system shall be located a minimum of (____) below the surface of the earth. ◉ 6 feet, 7 inches (3705.7 #6) Answer: An overcurrent protection device shall be installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is located a maximum of (____) above the floor or working platform. ◉ 120/240, 400 (3401.2) Answer: Electrical services within the IRC are limited to (_____)-volt, 0- to (_____)-ampere, single-phase systems. ◉ environment (3404.12) Answer: The markings for identification of disconnecting means shall have the durability to withstand the (_____) involved.
◉ 8 feet (3604.2.1) Answer: Overhead service-drop conductors shall have a vertical clearance of not less than (_____) above the roof surface. ◉ 12 feet (3604.2.2) Answer: Over residential property and driveways, service-drop conductors shall have (_____) minimum clearance above final grade. ◉ 10 feet (3604.3) Answer: In no case shall the point of attachment for service drop conductors be less than (_____) above finished grade. ◉ 80 (3605.5) Answer: Above-ground service-entrance cables subject to physical damage shall be protected by schedule (_____) PVC conduit. ◉ 5 feet (3608.1.1.1) Answer: Interior metal water piping located more than (_____) from the point of entrance to the building shall not be used as part of the grounding electrode system. ◉ 8 feet (3608.1.4) Answer: Rod and pipe electrodes shall not be less than (_____) in length. ◉ continuity (3609.1) Answer: Bonding shall be provided where necessary to ensure electrical (_____).
