Electrical Home Inspection / Electrical {National Electrical Code}
Competency Study Guide
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. To which size breaker should a 14 AWG copper wire go to? - Correct Answer: 15 amp
2. What is an approved disconnecting means for an air conditioner condensing units and
heat pump units? - Correct Answer: A disconnect switch located within sight of the
unit
3. How many amps are required for electrocution to occur? - Correct Answer: 1 amp
4. ____ ft is the minimum distance for a gfci protected outlet from a swimming pool -
Correct Answer: 6 ft
5. To which size breaker should a 12 AWG aluminum wire go to? - Correct Answer: 15
amp
6. Which of the following receptacle locations does not have to be GFCI protected? -
Correct Answer: Outdoor receptacles that are no readily accessible for electric snow
equipment
7. The service disconnecting means shall consist of __ switches or __ circuit breakers
mounted in a single enclosure group of separate enclosures. - Correct Answer: 6,6
,8. What is the min distance a grounding rod must be driven into the ground? - Correct
Answer: 8 ft.
9. What is the max length of a cord to a 120 volt window unit air conditioner? - Correct
Answer: 10 ft.
10. Romex wire must be supported every _____ in the attic. - Correct Answer: 4 ft 6 in
11. What is the min length cord to a garbage disposal? - Correct Answer: 18 in
12. What is the min clearance for a service wire over a backyard? - Correct Answer: 12
ft.
13. Romex must be stapled _____ from wall outlet. - Correct Answer: 12 in
14. Recessed incandescent fixtures with a completely enclosed bulb shall be installed in a
wall or ceiling provided there is a min clearance of _____ between the fixture and the
nearest point of a storage space. - Correct Answer: 6 in
15. A disconnect for an air conditioner condensing unit should be in sight or no more than
_____ away from it. - Correct Answer: 50 ft
16. Knob and tube wiring should be installed in a _______when penetrating wood. -
Correct Answer: Porcelain tube.
,17. At least one outdoor receptacle outlet accessible at grade level and not more than
________above grade, shall be installed outdoors at the front and back of each dwelling
having direct access to grade. - Correct Answer: 6ft. 6 in.
18. A minimum distant for a junction box from a swimming pool is ____. - Correct
Answer: 4 ft.
19. How many amps could possibly cause electrocution to occur? - Correct Answer: 1
20. The maximum height of an electrical breaker box is ____ from the ground. - Correct
Answer: 6ft. 7in.
21. The minimum clearance for a recessed incandescent light from a combustible material in
a closet is ______. - Correct Answer: 6 in
22. Grounding electrodes made of steel shall be a minimum of ____and the ones made of
copper should be a minimum of _____. - Correct Answer: 5/8in
1/2in.
23. The minimum of _______is required for a GFCI outlet or switch from a spa or hot tub. -
Correct Answer: 5ft.
24. Receptacles shall be installed so that no point along a floor line in any wall space is more
than ______from an outlet in that space. - Correct Answer: 6ft.
25. ______is the minimum distance for a GFCI outlet from a swimming pool. - Correct
Answer: 10ft.
, 26. A minimum of 2 _______amp rated branch circuits shall be provided to serve
receptacles located in the kitchen, pantry, breakfast area, and dining room. - Correct
Answer: 20
27. Switches shall be located not less than _____horizontally from the inside wall of a
swimming pool. - Correct Answer: 5ft.
28. Service conductors overhead clearance should be:
-10ft. above walking services
-12ft. above residential property and driveways
-18ft. above public streets, alleys, and parking areas - Correct Answer:
29. Unless installed parallel to framing members, NM wiring run in an attic access by a
portable ladder shall be protected from damage where located within _____of the
nearest edge of the attic entrance. - Correct Answer: 6ft.
30. NM wiring shall be supported a maximum of _______OC. - Correct Answer: 4.5ft.
31. At a kitchen counter, countertop outlets shall be installed with a maximum horizontal
distance of _____from any point along the wall line to an outlet. - Correct Answer:
24in.
32. In a bathroom, at least one receptacle outlet should be located a max of _______from
the outside edge of each lavatory. - Correct Answer: 36in.
33. All 125volt, single phase, 20 amp receptacle shall be provided with GFCI protection
where located within _______of the outside edge of a laundry sink. - Correct
Answer: 6ft.
Competency Study Guide
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. To which size breaker should a 14 AWG copper wire go to? - Correct Answer: 15 amp
2. What is an approved disconnecting means for an air conditioner condensing units and
heat pump units? - Correct Answer: A disconnect switch located within sight of the
unit
3. How many amps are required for electrocution to occur? - Correct Answer: 1 amp
4. ____ ft is the minimum distance for a gfci protected outlet from a swimming pool -
Correct Answer: 6 ft
5. To which size breaker should a 12 AWG aluminum wire go to? - Correct Answer: 15
amp
6. Which of the following receptacle locations does not have to be GFCI protected? -
Correct Answer: Outdoor receptacles that are no readily accessible for electric snow
equipment
7. The service disconnecting means shall consist of __ switches or __ circuit breakers
mounted in a single enclosure group of separate enclosures. - Correct Answer: 6,6
,8. What is the min distance a grounding rod must be driven into the ground? - Correct
Answer: 8 ft.
9. What is the max length of a cord to a 120 volt window unit air conditioner? - Correct
Answer: 10 ft.
10. Romex wire must be supported every _____ in the attic. - Correct Answer: 4 ft 6 in
11. What is the min length cord to a garbage disposal? - Correct Answer: 18 in
12. What is the min clearance for a service wire over a backyard? - Correct Answer: 12
ft.
13. Romex must be stapled _____ from wall outlet. - Correct Answer: 12 in
14. Recessed incandescent fixtures with a completely enclosed bulb shall be installed in a
wall or ceiling provided there is a min clearance of _____ between the fixture and the
nearest point of a storage space. - Correct Answer: 6 in
15. A disconnect for an air conditioner condensing unit should be in sight or no more than
_____ away from it. - Correct Answer: 50 ft
16. Knob and tube wiring should be installed in a _______when penetrating wood. -
Correct Answer: Porcelain tube.
,17. At least one outdoor receptacle outlet accessible at grade level and not more than
________above grade, shall be installed outdoors at the front and back of each dwelling
having direct access to grade. - Correct Answer: 6ft. 6 in.
18. A minimum distant for a junction box from a swimming pool is ____. - Correct
Answer: 4 ft.
19. How many amps could possibly cause electrocution to occur? - Correct Answer: 1
20. The maximum height of an electrical breaker box is ____ from the ground. - Correct
Answer: 6ft. 7in.
21. The minimum clearance for a recessed incandescent light from a combustible material in
a closet is ______. - Correct Answer: 6 in
22. Grounding electrodes made of steel shall be a minimum of ____and the ones made of
copper should be a minimum of _____. - Correct Answer: 5/8in
1/2in.
23. The minimum of _______is required for a GFCI outlet or switch from a spa or hot tub. -
Correct Answer: 5ft.
24. Receptacles shall be installed so that no point along a floor line in any wall space is more
than ______from an outlet in that space. - Correct Answer: 6ft.
25. ______is the minimum distance for a GFCI outlet from a swimming pool. - Correct
Answer: 10ft.
, 26. A minimum of 2 _______amp rated branch circuits shall be provided to serve
receptacles located in the kitchen, pantry, breakfast area, and dining room. - Correct
Answer: 20
27. Switches shall be located not less than _____horizontally from the inside wall of a
swimming pool. - Correct Answer: 5ft.
28. Service conductors overhead clearance should be:
-10ft. above walking services
-12ft. above residential property and driveways
-18ft. above public streets, alleys, and parking areas - Correct Answer:
29. Unless installed parallel to framing members, NM wiring run in an attic access by a
portable ladder shall be protected from damage where located within _____of the
nearest edge of the attic entrance. - Correct Answer: 6ft.
30. NM wiring shall be supported a maximum of _______OC. - Correct Answer: 4.5ft.
31. At a kitchen counter, countertop outlets shall be installed with a maximum horizontal
distance of _____from any point along the wall line to an outlet. - Correct Answer:
24in.
32. In a bathroom, at least one receptacle outlet should be located a max of _______from
the outside edge of each lavatory. - Correct Answer: 36in.
33. All 125volt, single phase, 20 amp receptacle shall be provided with GFCI protection
where located within _______of the outside edge of a laundry sink. - Correct
Answer: 6ft.
