IRC 2015 Electrical Inspector Examination Study
Cords that supply swimming pool equipment shall have a copper equipment grounding conductor not smaller than No. ______________ AWG.
12 AWG. 2015 IRC Section E4202.2 Flexible cords, Item 1
Over residential property and driveways, service-drop conductors shall have __________ feet minimum clearance above final grade.
12 feet. review the other clearance requirements in this section. 2015 IRC Section E3604.2.2 Vertical clearance from grade, Item 2.
In clothes closets, surface-mounted incandescent luminaires shall have _________ inches minimum clearance from the nearest point of storage space.
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
Rod and pipe electrodes shall be not less than ___________ feet in length.
8 feet. 2015 IRC E3608.1.4 Rod and pipe electrodes.
In no case shall the point of attachment for service-drop conductors be less than______________ feet above finished grade.
10 feet. 2015 IRC Section E3604.3 Point of attachment.
Electrical services within the scope of the IRC are limited to ____________-volt, 0-to _______________ - ampere, single-phase systems.
120/240 400 2015 IRC Section E3401.2 Scope
Where a branch circuit or a feeder supplies a continuous load, it shall have an ampacity of ______________ percent of the continuous load.
125 percent. a continuous load is something that will run for more than 3 hours, such as an A/C unit. Review exception. 2015 IRC Section E3701.2 Branch-circuit and feeder ampacity.
Flexible cords for kitchen range hoods shall be _______________ inches minimum and _____________ inches maximum length.
18 inches. 36 inches. 2015 IRC Table E4101.3 Flexible Cord Length.
In calculating box fill, each No. 12 AWG conductor shall require ______________ cubic inches free space within the box.
2.25 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.
20 ampere. Receptacles for appliances like the washer shall be located within 6 feet of the appliance location. See Section E3901.5 2015 IRC Section E3703.3 Laundry circuit.
Kitchen countertop receptacles shall be installed so that no point along the wall line is more than ___________ inches from a receptacle.
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.
Except for Type IC luminaires, thermal insulation shall not be installed above a recessed luminaire or within _______________ inches of the recessed luminaire's enclosure.
3 inches. Exception for Type IC luminaires. 2015 IRC Section E4004.9 Recessed luminaire installation.
At least one receptacle outlet in bathrooms is required to be within ________________ inches of each lavatory basin.
36 inches. The receptacle shall be located no more than 12 inches below the top of the basin. 2015 IRC Section E3901.6 Bathroom.
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.
5 feet. 2015 IRC Section E3608.1.1.1 Interior metal water piping.
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.
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.
Switches shall not be more than _________________ feet _________________ inches above the floor or working platform when the switch is in its highest position.
6 feet 7 inches Also applies to circuit breakers used as switches. 2015 IRC Section E4001.6 Access.
A luminaire that weighs more than ____________ pounds or exceeds 16 inches in any dimension shall not be supported by the screw shell of a lampholder.
6 pounds. 2015 IRC Section E4004.4 Supports.
Overhead service-drop conductors shall have a vertical clearance of not less than __________ feet above the roof surface.
8 feet. Review all of the exceptions in this section. 2015 IRC Section E3604.2.1 Above roofs.
the rating of any one cord-and-plug- connected utilization equipment shall not exceed ________ percent of the branch-circuit ampere rating.
80 percent. 2015 IRC Section E3702.3 Fifteen-and 20-ampere branch circuits.
Above-ground service-entrance cables subject to physical damage shall be protected by Schedule ____________ PVC conduit.
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.
Conductors in NM cable assemblies shall be rated at _________ Celsius.
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.
continuous load
A (_____) is something that will run for more than three hours, such as an A/C unit.
10 feet (3608.1.1)
A metal underground waterpipe used as part of the grounding electrode system shall be in direct contact with the earth for a minimum of (_____).
two 20-ampere-rated (3703.2)
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)
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).
30 inches (3608.1.5)
A plate electrode installed as part of a grounding electrode system shall be located a minimum of (____) below the surface of the earth.
12 inches (3803.2)
A warning ribbon shall be placed in the trench at least (_____) above the underground installation.
80 (3605.5)
Above-ground service-entrance cables subject to physical damage shall be protected by schedule (_____) PVC conduit.
Accessible (when not buried or concrete encased) (3611.2)
All mechanical elements used to terminate a grounding electrode conductor or bonding jumper to the grounding electrodes shall be (_____).
36 inches (3405.2)
An electrical panelboard requiring access while energized shall be provided with a minimum of (_____) in depth measured in the direction of access.
3 feet (3604.1)
An open service conductor without an overall outer jacket shall have a minimum clearance of (_____) from the sides of doors, porches and openable windows.
6 feet, 7 inches (3705.7 #6)
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.
8 feet (3604.2.1)
An overhead service conductor shall have a minimum clearance above a 3:12 roof of (_____).
3 feet, 1 foot (3901.6)
At least one receptacle outlet in bathrooms is required to be within (_____) of each lavatory basin and shall be located no more than (_____) below the top of the basin.
Connected to establish electrical continuity and conductivity.
Bonded (Bonding) Know all of the bonding and grounding definitions. 2015 IRC Section E3501 Definitions.
continuity (3609.1)
Bonding shall be provided where necessary to ensure electrical (_____).
Continuous (3702.10)
Branch circuit ratings for space-heating and water-heating appliances shall be considered (_____) loads.
90 (3705.4.4)
Conductors in NM cable assemblies shall be rated at (_____) degrees Celsius.
3 feet (3604.2.1 exc.2)
Electrical conductors located above a roof shall be installed with a minimum vertical clearance of (_____) where the roof has a slope of 8:12.
clothes closets, in bathrooms, or over the steps of a stairway. (3405.5)
Electrical panelboards and overcurrent protection devices shall not be located in (_____).
bathrooms (3601.6.2)
Electrical service disconnecting means shall not be installed in (_____).
120/240, 400 (3401.2)
Electrical services within the IRC are limited to (_____)-volt, 0- to (_____)-ampere, single-phase systems.
50 Volts (3404.9)
Energized parts operating at a minimum of (_____) shall be guarded against accidental contact by people through the use of approved enclosures.
Continuous green color (also with one or more yellow stripes) or Bare / Continuous white color (3407.2)
Equipment grounding conductors of sizes 6 AWG and smaller may be identified by (____) but not by (____).
8 feet (3604.2.1)
Overhead service-drop conductors shall have a vertical clearance of not less than (_____) above the roof surface.
10 feet (3604.3)
In all cases, the point of attachment of service drop conductors to a building shall be a minimum of (_____) above finished grade.
2.25 (3905.12.2.1)
In calculating box fill, each no.12 AWG conductor shall require (_____) cubic inches free space within the box.
10 feet (3604.3)
In no case shall the point of attachment for service drop conductors be less than (_____) above finished grade.
5 feet (3608.1.1.1)
In order to be used as part of the grounding electrode system, interior metal water pipe shall be located a maximum of (_____) from the entrance to the building.
sunlight resistant (3802.3.3)
Insulated conductors and cables exposed to direct rays of the sun shall be listed and labeled as (_____).
wet
Insulated conductors and cables installed in raceways in wet locations above grade shall be listed for use in (_____) locations.
Continuous white or gray outer finish OR three continuous white stripes / continuous black outer finish (3407.1)
Insulated grounded conductors of sizes 6 AWG and smaller may be identified by (____) but not by (____).
White, gray or green (3407.3)
Insulation on ungrounded conductors shall be a continuous color other than (____).
5 feet (3608.1.1.1)
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.
12 inches, 30 inches (3605.7)
Service entrance cables shall be supported by straps or other approved means within (____) of every electrical service head and at maximum intervals of (_____).
2 feet, 4 feet (3901.4.1)
Kitchen counter top receptacles shall be installed so that no point along the wall line is more than (____) from a receptacle. (And every (___) after that)
True (3905.3)
Nonmetallic boxes shall be used only with cable wiring methods with entirely nonmetallic sheaths, flexible cords and nonmetallic raceways. (True or False)
12 feet (3604.2.2)
Over residential property and driveways, service-drop conductors shall have (_____) minimum clearance above final grade.
12 feet (3604.2.2 #2)
Overhead service conductors shall have a minimum clearance of (_____) over residential property and driveways.
6 feet, 12 feet (3901.2.1)
Receptacles shall be installed so that no point along the floor line in any wall space is more than (_____) measured horizontally, from an outlet in that space. (And every (_____) after that.)
8 feet (3608.1.4)
Rod and pipe electrodes shall not be less than (_____) in length.
6 feet, 7 inches (4001.6)
Switches shall not be more than (____) above the floor or working platform when the switch is in its highest position.
earth (3908.5)
The (____) shall not be considered as an effective ground-fault current path.
6 feet (3405.3)
The dedicated indoor space above an electrical panelboard shall be a minimum of (_____) high or to the structural ceiling, whichever is lower.
environment (3404.12)
The markings for identification of disconnecting means shall have the durability to withstand the (_____) involved.
No. 14 (3406.3)
The minimum size of electrical conductors for feeders and branch circuits, when of copper, shall be (_____) AWG.
80% (3702.3)
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.
six (3903.3)
There shall be a wall switch at each floor to control stairway lighting where the stairway has (____) or more risers.
Recessed incandescent fixtures shall have _____________ protection.
Thermal. Know the two exceptions in this section. 2015 IRC Section E4003.5 Recessed incandescent luminaries.
Nonmetallic boxes shall be used only with cable wiring methods with entirely nonmetallic sheaths, flexible cords and nonmetallic raceways.
True. read the two exceptions in this section. review tables E3904.6(1) through E3904.6(10) 2015 IRC Section E3905.3 Nonmetallic boxes.
A minimum of ____________ 20-ampere-rated branch circuits shall be provided to serve all wall and floor receptacle outlets located in the kitchen, pantry, breakfast area, dining area or similar area of a dwelling.
Two. 2015 IRC Section E3703.2 Kitchen and dining area receptacles.
warning ribbon (3803.2)
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 (_____).
closed (3906.4)
Unused openings in cabinets and panelboards shall be effectively (____) to afford protection equivalent to that of the wall of the cabinet.
15,20,25,30,35,40,45,50,60,70,80,90,100,110,125,150,175,200, 225,250,300,350 and 400 amperes (3705.6)
What are the standard ampere ratings for fuses and inverse time circuit breakers?
30 inches (3405.2)
Work space in front of an electrical panelboard shall be a minimum of (_____) in width, but no less than the width of the panelboard.
three volt-amperes (3704.4)
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.
125% (3701.2)
Where a branch circuit or feeder supplies a continuous load, it shall have an ampacity of (_____) of the continuous load.
5/8", 8 feet (3608.1.4 #2)
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.
6 inches (3406.11.3)
Where electrical conductors are to be spliced, terminated or connected to fixtures or devices, a minimum length of (_____) of free conductor shall be provided at each outlet, junction or switch point.
24 inches (3605.9.3 exc.)
Where it is impractical to locate the service head or gooseneck above the point of attachment of the service-drop or overhead service conductors to the building, the service head or gooseneck shall be located a maximum of (_____) from the point of attachment.
1/4" (3404.6)
Where metallic plugs or plates are used with nonmetallic electrical enclosures to close unused openings , they shall be recessed a minimum of (____) from the outer surface of the enclosure.
6 feet (3608.3)
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.
wet (3802.7)
Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a (_____) location.
3 inches (3406.11.3)
Where the opening to an outlet, junction, or switch point is less than 8 inches in any dimension, each electrical conductor shall be long enough to extend a minimum of (____) outside of such opening.
18 inches (3610.2)
Where used outside, an aluminum or copper-clad aluminum grounding electrode conductor shall be installed a minimum of (_____) from the earth.
All mechanical elements used to terminate a grounding electrode conductor or bonding jumper to the grounding electrodes shall be __________________.
accessible. When not buried or concrete encased. 2015 IRC Section E3611.2 Accessibility.
Unused openings in cabinets and panelboards shall be effectively _____________ to afford protection equivalent to that of the wall of the cabinet.
closed. This means open knockouts are not allowed. 2015 IRC Section E3906.4 Unused openings.
Electrical panelboards and overcurrent devices shall not be located in _______________________________.
clothes closets, bathrooms or over the steps of a stairway. 2015 IRC Section E3405.5 Location of working spaces and equipment.
Bonding shall be provided where necessary to ensure electrical ______________.
continuity. and the capacity to conduct safely any fault current likely to be imposed. 2015 IRC Section E3609.1 General
Branch circuit ratings for space-heating and water-heating appliances shall be considered ____________ loads.
continuous. 2015 IRC Section E3702.10 Branch circuits serving heating loads.
The __________________ shall not be considered as an effective ground-fault current path.
earth. 2015 IRC Section E3908.5 Earth as a ground-fault current path.
Chapter 11 regulates the ___________ efficiency for the design and construction of buildings regulated by this code.
energy. This chapter is extracted from the 2015 edition of the International Energy Conservation Code- Residential Provisions. 2015 IRC N1101.1 Scope.
The markings for identification of disconnection means shall have the durability to withstand the _____________ involved.
environment. 2015. IRC Section E3404.12 Identification of disconnection means, Item 4.
Receptacles installed on 15- and 20-ampere-rated branch circuits shall be of the ___________ type.
grounding. 2015 IRC Section E4002.2 Grounding type.
Ceiling-suspended paddle fans shall be supported ________________ of the outlet box.
independently. 2015 IRC Section E4101.6 Support of ceiling-suspended paddle fans.
A minimum of ___________ ___________ branch circuit shall be provided to supply the bathroom receptacle outlet(s). Such circuits shall have no other outlets.
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.
There shall be a wall switch at each floor to control stairway lighting where the stairway has ___________ or more risers.
six. 2015 IRC Section E3903.3 Additional locations.
Insulated conductors and cables exposed to direct rays of the sun shall be listed and labeled as ______________ __________________.
sunlight resistant. 2015 IRC Section E3802.3.3 Locations exposed to direct sunlight.
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 ________________ _____________.
warning ribbon. Placed in the trench at least 12 inches above the underground installation. 2015 IRC Section E3803.2 Warning ribbon.
Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a ______________ location.
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.
