IRC 2025 Electrical Inspector Examination Study Guide Questions
and Answers.
Cords that supply swimming pool equipment shall have a copper equipment grounding
conductor not smaller than No. ______________ AWG. - Correct Answer 12 AWG.
2015 IRC Section E4202.2 Flexible cords, Item 1
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. - Correct 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. - Correct 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. - Correct 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. - Correct
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. - Correct Answer 2.25 cubic inches.
2015 IRC Table E3905.12.2.1 Volume Allowance Required Per Conductor.
,Except for Type IC luminaires, thermal insulation shall not be installed above a recessed
luminaire or within _______________ inches of the recessed luminaire's enclosure. -
Correct Answer 3 inches.
Exception for Type IC luminaires.
2015 IRC Section E4004.9 Recessed luminaire installation.
Branch circuit ratings for space-heating and water-heating appliances shall be considered
____________ loads. - Correct Answer continuous.
2015 IRC Section E3702.10 Branch circuits serving heating loads.
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. - Correct Answer Two.
2015 IRC Section E3703.2 Kitchen and dining area receptacles.
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. - Correct Answer 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.
Bonding shall be provided where necessary to ensure electrical ______________. -
Correct 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. - Correct
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. - Correct 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 __________________. - Correct 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. - Correct Answer
5 feet.
2015 IRC Section E3608.1.1.1 Interior metal water piping.
Electrical panelboards and overcurrent devices shall not be located in
_______________________________. - Correct Answer clothes closets, bathrooms or
over the steps of a stairway.
2015 IRC Section E3405.5 Location of working spaces and equipment.
Overhead service-drop conductors shall have a vertical clearance of not less than
__________ feet above the roof surface. - Correct Answer 8 feet.
Review all of the exceptions in this section.
2015 IRC Section E3604.2.1 Above roofs.
Electrical services within the scope of the IRC are limited to ____________-volt, 0-to
_______________ - ampere, single-phase systems. - Correct Answer 120/240
400
2015 IRC Section E3401.2 Scope
Recessed incandescent fixtures shall have _____________ protection. - Correct Answer
Thermal.
and Answers.
Cords that supply swimming pool equipment shall have a copper equipment grounding
conductor not smaller than No. ______________ AWG. - Correct Answer 12 AWG.
2015 IRC Section E4202.2 Flexible cords, Item 1
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. - Correct 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. - Correct 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. - Correct 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. - Correct
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. - Correct Answer 2.25 cubic inches.
2015 IRC Table E3905.12.2.1 Volume Allowance Required Per Conductor.
,Except for Type IC luminaires, thermal insulation shall not be installed above a recessed
luminaire or within _______________ inches of the recessed luminaire's enclosure. -
Correct Answer 3 inches.
Exception for Type IC luminaires.
2015 IRC Section E4004.9 Recessed luminaire installation.
Branch circuit ratings for space-heating and water-heating appliances shall be considered
____________ loads. - Correct Answer continuous.
2015 IRC Section E3702.10 Branch circuits serving heating loads.
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. - Correct Answer Two.
2015 IRC Section E3703.2 Kitchen and dining area receptacles.
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. - Correct Answer 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.
Bonding shall be provided where necessary to ensure electrical ______________. -
Correct 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. - Correct
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. - Correct 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 __________________. - Correct 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. - Correct Answer
5 feet.
2015 IRC Section E3608.1.1.1 Interior metal water piping.
Electrical panelboards and overcurrent devices shall not be located in
_______________________________. - Correct Answer clothes closets, bathrooms or
over the steps of a stairway.
2015 IRC Section E3405.5 Location of working spaces and equipment.
Overhead service-drop conductors shall have a vertical clearance of not less than
__________ feet above the roof surface. - Correct Answer 8 feet.
Review all of the exceptions in this section.
2015 IRC Section E3604.2.1 Above roofs.
Electrical services within the scope of the IRC are limited to ____________-volt, 0-to
_______________ - ampere, single-phase systems. - Correct Answer 120/240
400
2015 IRC Section E3401.2 Scope
Recessed incandescent fixtures shall have _____________ protection. - Correct Answer
Thermal.
