1. 200 – Industry Related Residential Version (201029)

1

Branch-circuit cable type UF is located in Article _____.

338
340
336
334

Reference: 340.1

2. 199 – Industry Related Residential Version (201029)

1

Telephone communication wires installed in a wood framed wall generally should be separated by at least _____ inch(es) from NM cable (romex) at 120 volts.

No separation is needed.
3
1
2

Reference: 800.133B

3. 198 – Industry Related Residential Version (201029)

1

In a residential closet, a junction box with 120-volt conductors is installed for the doorbell transformer. The Class 2 low voltage wires ___________.

may be installed in the same J box
Only Class 1 low voltage wires may be ran.
None of these statements are true
may be run outside adjacent to the J box to provide separation

Reference: 725.136A&B

4. 196 – Industry Related Residential Version (201029)

1

A single family dwelling with an indoor packaged hot tub assembly may utilize romex as a wiring method if it ___________.

complies with Part I and II of Article 680
is installed in a raceway only
contains a copper equipment grounding conductor sized at a minimum of 10 AWG or larger only
Romex is not allowed to feed an indoor hot tub

Reference: 680.43

5. 195 – Industry Related Residential Version (201029)

1

For an indoor hot tub installation, a ceiling fan must be GFCI protected if it is located less than _____ feet above or _____ feet horizontally from the tub.

12, 5
7 feet, 5 feet
None of these statements are true
14, 5

Reference: 680.43B 1

6. 194 – Industry Related Residential Version (201029)

1

An emergency disconnecting means is required for a hot tub not less than 5 feet and within sight.

For single-family dwelling unit.
For a multifamily structure.
None of these statements are true
Both A and B above are true statements.

Reference: 680.41

7. 193 – Industry Related Residential Version (201029)

1

An outdoor hot tub requires a common bonding grid to eliminate any voltage gradient in the area. The bonding conductor must be at least a _____ AWG copper wire.

None of these statements are true
#8 solid or stranded
#10 solid or stranded
#8 solid (due to possible corrosive influences that may adversely affect stranded conductors)

Reference: 680.26B

8. 192 – Industry Related Residential Version (201029)

1

Which, if any, circuit conductors may be installed with the GFCI protected conductors in a nonmetallic raceway used for an underwater swimming pool light?

Both of these statements are true
The 240 volt branch circuit for the pool pump motor without GFCI protection.
None of these statements are true
The 120 volt branch circuit (not required to be GFCI protected) used for outside lights.

Reference: 680.23F 3

9. 190 – Industry Related Residential Version (201029)

1

For an outdoor hot tub, a 125 V, 15 or 20 ampere receptacle shall be located not less than _____ feet or more than _____ feet from the inside wall of the tub or more than _____ feet above the level of the tub.

6, 20, 6.5
10, 20, 10
5, 10, 2005
10, 15, 6.5

Reference: 680.22A 1

10. 186 – Industry Related Residential Version (201029)

1

Mobile home disconnecting means shall be located not less than _____ feet above finished grade.

2
5
3
4

Reference: 550.32F

11. 184 – Industry Related Residential Version (201029)

1

Electric ranges and clothes dryers used in mobile homes shall be ___________.

installed like in all existing dwelling units
installed with the grounding conductor and the neutral bonded together
installed with the grounded circuit conductor insulated from the grounding conductor and the metal equipment enclosures
installed with the metal equipment enclosure junction box isolated

Reference: 550.16A, 250.104

12. 183 – Industry Related Residential Version (201029)

1

Type NM cable (romex) is used as a temporary construction branch circuit. It is limited to _____ floors above grade.

4
5
Unlimited
3

Reference: 590.4C

13. 182 – Industry Related Residential Version (201029)

1

The length of a supply cord to a 120-volt rated room air-conditioner shall not exceed _____ feet.

3
10
4
6

Reference: 440.64

14. 181 – Industry Related Residential Version (201029)

1

An owner of a nice home wants to install a walk-in freezer in his garage area. It has an evaporator fan motor inside.

None of these statements are true
Unless the installation is covered by either of the exceptions, a disconnecting means if required for the evaporator motor.
Two of these statements are true
The disconnecting means if required is to be visible, within sight, and not more than 50 feet away.

Reference: 430.102, 440.14

15. 180 – Industry Related Residential Version (201029)

1

Electric heat cable with a conductive floor covering installed in a bathroom floor shall _____.

have GFCI protection
be only allowed in commercial structures
be prohibited
be limited to 32 volts

Reference: 424.44E

16. 179 – Industry Related Residential Version (201029)

1

A residence is installing a new heating load of 28,000 watts in base board heaters on a 240-volt circuits. They are on more than 3 hours at a time so the actual continuous duty load is 35,000 watts (125%). The minimum number of 30 ampere branch circuits to supply these heaters is _____.

8
5
6
7

Reference: 424.4

17. 178 – Industry Related Residential Version (201029)

1

Given a wall mounted oven is cord and plug connected:

For the cord and plug to serve as the unit disconnect, it must be accessible.
All of these statements are true
Having to pull the unit out of the wall first to get access to the plug and cord may not be considered accessible, and additional disconnecting would be required.
A pull out drawer in the bottom of the oven could make the cord and plug accessible.

Reference: 422.33B

18. 176 – Industry Related Residential Version (201029)

1

When a gas-fired central heating furnace is installed in a dwelling unit, is a disconnect required for the 1/8 HP blower motor?

A disconnect is not required, but recommended.
No, only if the blower motor is 1/4 HP or more.
Yes, unless the branch circuit breaker is within sight.
No, the disconnect would be impracticable.

Reference: 422.31A

19. 175 – Industry Related Residential Version (201029)

1

If the overcurrent protective device rating is marked on the name plate of the appliance, the branch circuit overcurrent device shall be no more than _____ of the rating.

125%
80%
100%
50%

Reference: 422.11A

20. 174 – Industry Related Residential Version (201029)

1

Branch circuit conductors within _____ inches of a ballast, within the ballast compartment shall be recognized for use at temperatures not lower than 90 degree C.

3
4
2
1

Reference: 410.68

21. 173 – Industry Related Residential Version (201029)

1

Which types of luminaries (light fixtures) are permitted in clothes closets?

Surface mounted incandescents with enclosed lamps.
Surface mounted fluorescents.
All of these statements are true
Recessed incandescents with enclosed lamps.

Reference: 410.16B

22. 172 – Industry Related Residential Version (201029)

1

Which types of luminaries (light fixtures) are not permitted in clothes closets?

Incandescents with an open lamp.
Incandescents with partially enclosed lamps.
Pendant mounted luminaries.
All of these statements are true

Reference: 410.16C

23. 170 – Industry Related Residential Version (201029)

1

The defined space in a bathtub zone may not necessarily rise all the way up to the ceiling. In a clothes closet, the area defined as storage space rises up to _____ feet above the shelf.

3
In a clothes closet, the area defined as storage space rises to the ceiling regardless of the ceiling height.
4
2

Reference: 410.16A Figure

24. 168 – Industry Related Residential Version (201029)

1

A homeowner wants a track light installed over the bathtub in his residence.

This is allowed if no part of the fixture is within 3 feet horizontally of the tub.
Both of these statements are true
This is allowed if no part of the fixture is within 8 feet of the top of the tub rim.
None of these statements are true

Reference: 410.10D

25. 167 – Industry Related Residential Version (201029)

1

A 20 ampere, 120-volt receptacle installed outdoors and subject to beating rain and water runoff shall have an enclosure that is weatherproof when the attachment plug cap is inserted in ___________.

All of these statements are true
commercial applications
residential applications
industrial applications

Reference: 406.9A

26. 166 – Industry Related Residential Version (201029)

1

Receptacles rated _____ amperes or less directly connected to aluminum conductors shall be marked CO/ALR.

20
30
25
40

Reference: 406.3C

27. 165 – Industry Related Residential Version (201029)

1

Can a circuit breaker be used to switch 277 V fluorescent lighting circuits?

Both of these statements are true
Yes, if they are marked HID
Yes, if they are marked SWD.
None of these statements are true

Reference: 404.11, 240.83D

28. 164 – Industry Related Residential Version (201029)

1

Snap switches are required to be grounded ___________.

whether or not a metal coverplate is installed
only when installed in a metal J box
only when a metal coverplate is used
only when installed in a dwelling unit

Reference: 404.9B

29. 162 – Industry Related Residential Version (201029)

1

The height of a circuit breaker used as a switch shall not exceed _____ above the floor.

6 feet, 7 inches
6 feet
5 feet
4.5 feet

Reference: 404.8A

30. 159 – Industry Related Residential Version (201029)

1

Concealed knob & tube wiring is not allowed in the hollow space of a wall where the space ___________.

is insulated with blown-in insulation that surrounds the wire
is not ventilated
None of these statements are true
exceeds 35 degree C

Reference: 394.12

31. 158 – Industry Related Residential Version (201029)

1

Rigid Nonmetalic Conduit (RNC or PVC) is installed in a trench for a new service lateral. The local power company supplies the properly listed conduit in both gray and orange colors for the service and optics. The service lateral conduit can be ___________.

Two of these statements are true, the NEC is not clear on this.
orange colored conduit
None of these statements are true
grey colored conduit

Reference: 352.6 352.10

32. 157 – Industry Related Residential Version (201029)

1

A 1-inch Rigid Nonmetalic Conduit (RNC or PVC) has a field bend made with a blanket bender. The radius of the curve to the centerline shall not be less than _____ inches.

What’s shown in Table 2, Chapter 9
8 inches
10 inches
7 inches

Reference: 352.24

33. 156 – Industry Related Residential Version (201029)

1

Power conductors in type NMC cable are manufactured in copper sizes ___________.

#14-#4
#14-#6
#12-#2
#14-#2

Reference: 334.104

34. 155 – Industry Related Residential Version (201029)

1

Type NM cable (romex) is permitted to connect fluorescent light fixtures in a residence in a dropped ceiling grid without support to a maximum length of not more than _____ feet.

4.5
3.5
4
3

Reference: 334.30 B2

35. 153 – Industry Related Residential Version (201029)

1

NMB cable (romex) is required to be protected from physical damage when exposed.

Two of these statements are true
None of these statements are true
When passing through a floor the cable shall be enclosed in conduit extending at least 6 inches above the floor.
When run across the top of the truss joists in an accessible attic, the cable shall be protected by guard strips.

Reference: 334.15B, 23

36. 152 – Industry Related Residential Version (201029)

1

A building has hallways with suspended T-bar ceilings to conceal air conditioning ducts. Open runs of NM (romex) are allowed in the dropped ceiling area if it is not used for environmental air-handling and the structure is classified as ___________.

a dental facility
commercial
None of these statements are true
one-family

Reference: 334.12A

37. 150 – Industry Related Residential Version (201029)

1

Threaded boxes not over 100 cubic inches that contain a device, shall be considered supported when 2 or more conduits on the same side are threaded into the box if each conduit is supported within _____ inches of that box.

18
24
30
36

Reference: 314.23F

38. 149 – Industry Related Residential Version (201029)

1

In a combustible wall, the front edge of an outlet box may be set back no more than _____ inches from the finished surface.

0
1/2
1/4
1/8

Reference: 314.20

39. 148 – Industry Related Residential Version (201029)

1

A #4 copper conductor used for a residential dwelling unit branch circuit with 75 degree C terminations is rated for at least _____ amperes.

115
85
100
110

Reference: Table 310.16

40. 147 – Industry Related Residential Version (201029)

1

A #4 copper conductor used for a residential dwelling unit feeder panel is rated for at least _____ amperes.

100
85
110
115

Reference: Table 310.12

41. 145 – Industry Related Residential Version (201029)

1

There are 4 separate raceways used to enclose paralleled conductors.

3 conduits shall be rigid steel and one may be rigid nonmetallic conduit (PVC).
None of these statements are true
2 conduits shall be rigid steel and two may be rigid nonmetallic conduit (PVC).
4 conduits may be rigid steel, the code is not clear on this

Reference: 310.10G

42. 144 – Industry Related Residential Version (201029)

1

NMB (romex) cable is installed in a standard 2 x 4 inch plastic nail-on junction box.

Equipment grounding conductors are also required to meet this free conductor length requirement.
The measurement of free conductor length in this junction box is taken from the back of the box where conductors emerge from the sheath.
A minimum of 6 inches of free conductor length is required for make-up and/or connection to devices.
All of these statements are true

Reference: 300.14

43. 143 – Industry Related Residential Version (201029)

1

A 24-volt landscape lighting system installed with UF cable in the yard of a residence is permitted with a minimum cover of _____ inches.

24
18
6
12

Reference: Table 300.5

44. 141 – Industry Related Residential Version (201029)

1

A new service lateral is installed 36 inches deep in a trench and it is not encased in concrete. It shall have a warning ribbon (caution tape) installed a minimum of _____ inches above the lateral conductors.

12
18
24
6

Reference: 300.5D 3

45. 140 – Industry Related Residential Version (201029)

1

The smoke detectors in a home are required to be interconnected by the building department which will necessitate a signaling conductor. This can be done by running ___________ romex cable(s) between the smoke detectors.

None of these statements are true
Two separate 14-2
A 14-3
Both statements are true.

Reference: 300.3B

46. 139 – Industry Related Residential Version (201029)

1

Which is not a true statement about equipment grounding conductors?

One equipment grounding conductor may serve multiple circuits.
Equipment grounding conductors may be run in parallel.
An equipment grounding conductor may be required to be larger than the hot wires.
Equipment grounding conductors shall be increased in size to compensate for voltage drop when the circuit conductors are.

Reference: 250.122A

47. 138 – Industry Related Residential Version (201029)

1

If the service entrance conductors are 350 KCMIL copper, what is the minimum size copper grounding electrode conductor if this is the sole connection to a metal water pipe electrode?

#2
#4
1/0
#6

Reference: Tab250.66, 66A

48. 136 – Industry Related Residential Version (201029)

1

A 200 ampere residential service is installed with 4/0 AL ungrounded service entrance conductors and needs a grounding electrode conductor installed to the metal plumbing piping system. This conductor can be sized _____.

#6 CU
None of these statements are true
#4 AL
#2 AL

Reference: Tab. 250.66, 64

49. 135 – Industry Related Residential Version (201029)

1

The grounding electrode conductor generally shall be installed without a splice, but ___________.

A 2-barrel lug can be used.
None of these statements are true
A split bolt can be used.
An irreversible compression connector can be used.

Reference: 250.64C

50. 134 – Industry Related Residential Version (201029)

1

Given a typical 200 ampere residential service, the grounding electrode conductor could be ran to the ground rods first and then to the metal water piping system if it is sized _____.

#6 AWG AL
#4 AWG AL
#4 AWG CU
#6 AWG CU

Reference: 250.64F

51. 133 – Industry Related Residential Version (201029)

1

A structure has 2 separate services supplying the building.

Each service can have a separate grounding electrode system as long as they are bonded together to create one system.
Each service requires a separate grounding electrode system.
Only one service would require a separate grounding electrode system.
More than one service on a structure is never allowed.

Reference: 250.58

52. 132 – Industry Related Residential Version (201029)

1

A supplementary electrode is installed for a lighting pole because this equipment may be subject to lightning strikes. If a ground rod is used as this supplementary electrode, how many are required?

1
2
None of these statements are true
Rods are not allowed as supplementary electrodes.

Reference: 250.54

53. 131 – Industry Related Residential Version (201029)

1

Two ground rods are installed six feet apart for a 200 ampere residential service. These ground rods can be located ___________.

Both of these statements are true
Outside near the foundation of the home.
None of these statements are true
Inside the garage slab under the panel.

Reference: 250.53

54. 130 – Industry Related Residential Version (201029)

1

Some metal water piping systems can deteriorate with time and may even end up being replaced with a nonmetallic system. This is one reason the code requires a supplemental grounding electrode as a backup. If a ground rod is used as this supplemental electrode, how many are required?

1 (Resistance to ground is more than 25 ohms)
2
0
Rods are not allowed to supplement the piping system.

Reference: 250.53

55. 128 – Industry Related Residential Version (201029)

1

If an equipment grounding conductor is installed with a feeder to a separate structure, the equipment grounding conductor shall not be bonded to the ___________.

The disconnect enclosure
None of these statements are true
Grounding electrode conductor
Grounded conductor

Reference: 250.32B

56. 125 – Industry Related Residential Version (201029)

1

Service conductors that run above the top level of a window shall be permitted to be less than the _____ foot requirement.

6
3
8
4

Reference: 230.9A

57. 124 – Industry Related Residential Version (201029)

1

An outbuilding on residential property is wired with one 20 ampere, 120-volt feeder for lighting and outlets.

No disconnecting means is required for this situation.
The required disconnecting means shall be located near the point of entry.
A snap switch is allowed for the required disconnecting means.
The required disconnecting means shall be red.

Reference: 225.36

58. 122 – Industry Related Residential Version (201029)

1

A living room in a dwelling unit has 3 entry points (doorways) into the room. What is the minimum requirement for the number of lighting outlet switches?

3, 2 to 3-way and 1 4-way switch
1
2, 3-way switches
0

Reference: 210.70A 1

59. 120 – Industry Related Residential Version (201029)

1

Which rooms in a dwelling unit may have a receptacle outlet controlled by a switch used for lighting instead of a lighting outlet?

None of these statements are true
Dining room
Kitchen
Bathroom

Reference: 210.70A 1

60. 119 – Industry Related Residential Version (201029)

1

A dwelling unit dining room has a receptacle controlled by a wall switch instead of a lighting outlet.

This is allowed when the switch is supplied by the small appliance branch circuit required to serve this room.
This is allowed when the switch is supplied by a general purpose branch circuit and it is installed in addition to the required small appliance branch circuit.
Both A and B above are true statements.
None of these statements are true

Reference: 210.70, 52B 1

61. 118 – Industry Related Residential Version (201029)

1

A homeowner wants an occupancy sensor installed in his home office for lighting.

None of these statements are true
This is allowed for one mounted on the ceiling if a wall switch is also installed.
This is allowed if the occupancy sensor replaces the wall switch if it is equipped with a manual override that allows it to function as a wall switch.
Both of these statements are true

Reference: 210.70A 1

62. 117 – Industry Related Residential Version (201029)

1

In order for the required receptacle outlet in the back of a dwelling unit to serve also as the required outlet for the air-conditioning equipment on the side of the home, it must be located within _____ feet of the unit.

30
50
10
25

Reference: 210.63

63. 116 – Industry Related Residential Version (201029)

1

An air-conditioner is located at grade level on the back of a residence. A receptacle outlet is also located on the back of a residence at a deck which is 3 feet above grade, within 10 feet of the AC equipment.

This receptacle outlet does not have to be GFCI protected.
This receptacle outlet can serve as the required outlet for the AC equipment.
This receptacle outlet must be marked to indicate this dual usage.
This receptacle outlet cannot serve as the required outlet for the AC equipment. (must be on the same level)

Reference: 210.63

64. 114 – Industry Related Residential Version (201029)

1

Which receptacle outlet location is permitted but not counted as a required receptacle location?

An outlet that is part of a luminaire (light fixture).
Over 6 feet above the floor.
Inside a kitchen cabinet.
All of these statements are true

Reference: 210.52

65. 113 – Industry Related Residential Version (201029)

1

Floor boxes shall be considered to meet the requirement of the spacing receptacles on walls if they are ___________.

within 36 inches of the wall
within 24 inches of the wall
within 18 inches of the wall
within 12 inches of the wall

Reference: 210.52A 3

66. 111 – Industry Related Residential Version (201029)

1

The residential small appliance branch circuit in a kitchen area ___________.

may include a plug connected microwave oven receptacle installed on the countertop.
may not include power for a gas-fired cooktop receptacle.
may not include a countertop microwave oven load.
may not include power for an electric clock receptacle in the kitchen.

Reference: 210.52B

67. 109 – Industry Related Residential Version (201029)

1

In dwelling unit bathrooms, at least one receptacle outlet shall be installed within _____ inches of the outside edge of each basin.

18
36
48
24

Reference: 210.52D

68. 108 – Industry Related Residential Version (201029)

1

The rating of a cord and plug connected central vacuum unit assembly shall not exceed _____ percent of the branch circuit rating it is installed on.

80
70
100
50

Reference: 210.23B1

69. 106 – Industry Related Residential Version (201029)

1

Dwelling unit receptacle outlets shall be protected by arc-fault circuit interrupter protection ___________.

Even for sunroom receptacles.
even for outside receptacles.
even for bathroom receptacles.
None of these statements are true

Reference: 210.12B

70. 104 – Industry Related Residential Version (201029)

1

Does a duplex receptacle installed in a dwelling type occupancy for the refrigerator require GFCI protection?

No, never
Not if it is a single receptacle on the yoke installed for the refrigerator.
Not when it is installed on the wall behind the location for the refrigerator.
Yes, all kitchen receptacles

Reference: 210.8A 6

71. 103 – Industry Related Residential Version (201029)

1

In a dwelling unit, a multiwire branch circuit supplying a split-wired receptacle is required to ___________.

have at least 2 neutrals.
have a separate neutral for each ungrounded conductor.
have a provision at the source to simultaneously disconnect all ungrounded conductors.
have color coded wires to help identify.

Reference: 210.4B

72. 101 – Industry Related Residential Version (201029)

1

Is a circuit breaker without a HACR marking suitable as a disconnecting means for an outdoor air conditioner?

If the marking on the unit indicates fuses, the circuit breaker does have to be a HACR type
If the marking on the unit specifies fuses or circuit breaker, the breaker does not have to be a HACR type if fuses are used.
If the marking on the unit indicates fuses or HACR circuit breaker, the breaker does not have to be a HACR type if no fuses are used.
None of these statements are true

Reference: 110.3B

73. 099 – Industry Related Residential Version (201029)

1

For each yoke or strap containing one or more devices, a ______ volume allowance is made based on the largest conductor connected to the device to calculate box fill.

Single.
No allowance is needed for devices.
Double.
Triple.

Reference: 314.16B 4

74. 098 – Industry Related Residential Version (201029)

1

What is the minimum direct burial depth of Rigid Nonmetallic Conduit (RNC/PVC) on a residential 15 amp GFCI protected circuit rated 120 volts or less?

6 inches.
12 inches.
24 inches.
18 inches.

Reference: Table 300.5

75. 097 – Industry Related Residential Version (201029)

1

As a general rule, unless an exception is met, when one structure is fed from another…

Only one feeder is allowed.
Two feeders are allowed if identified.
Up to three are allowed if identified.
There is no specific restriction on the number of feeders allowed.

Reference: 225.30

76. 095 – Industry Related Residential Version (201029)

1

As a general rule, conductors of Class II wiring as for a thermostat circuit ____ placed in any enclosure, box, raceway, etc., with conductors of electric light, power, Class I, and non-power limited fire alarm circuits.

Can be if 300 volt insulation.
Shall not be.
Can be if 600 volt insulation.
Can be.

Reference: 725.136A

77. 094 – Industry Related Residential Version (201029)

1

A hydromassage bathtub…

Requires all 125-volt receptacles within 6 feet be GFCI protected.
All of the statements are true.
Requires metal piping system associated with the tub shall be bonded to the electrical equipment (motor).
Requires motor be accessible without damaging the building.

Reference: 680.71, 73, 74

78. 093 – Industry Related Residential Version (201029)

1

Which shall have ground fault circuit interrupter protection?

An outdoor fountain.
A hydromassage bathtub.
All of the installations require GFCI protection.
An indoor hot tub supplied by an outlet.

Reference: 680.43, 56A, 71

79. 091 – Industry Related Residential Version (201029)

1

In case someone gets stuck under water on the intake opening, an emergency shutoff or control is required for a hot tub….

Within sight of the tub.
All of these statements are true
And is not required for single-family dwellings.
At least 5 feet away.

Reference: 680.41

80. 089 – Industry Related Residential Version (201029)

1

The number 8 solid copper conductor required for swimming pool bonding in the grid can be installed with…

Aluminum clamps.
Listed pressure connectors.
Any creative fitting.
Indoor type water pipe clamps.

Reference: 680.26B, 250.8

81. 088 – Industry Related Residential Version (201029)

1

A swimming pool pump motor supplied by a receptacle 6 feet away from the inside pool wall…

Does not require GFCI protection.
Requires GFCI protection if 15 to 20-amp three phase only.
Requires GFCI protection except for dwelling units.
Requires GFCI protection.

Reference: 680.22A

82. 087 – Industry Related Residential Version (201029)

1

The junction “deck box” for a no-niche luminaire (lighting fixture) for a swimming pool shall…

All of these statements are true
Not be less than 4 inches above ground level.
Not be less than 8 inches above pool water level.
Not be located in a walkway without protection.

Reference: 680.24A2

83. 086 – Industry Related Residential Version (201029)

1

What is the minimum mounting height of an outdoor mobile home disconnect?

2 feet from the bottom of the enclosure to finish grade.
3 1/2 feet from the bottom of the enclosure to finish grade.
3 feet from the bottom of the enclosure to finish grade.
4 feet from the bottom of the enclosure to finish grade.

Reference: 550.32F

84. 084 – Industry Related Residential Version (201029)

1

A typical 240-volt mobile home feeder requires…

Four insulated conductors.
None of these statements are true
Four insulated conductors or three insulated conductors and a bare equipment grounding conductor.
Three insulated conductors.

Reference: 550.33B

85. 083 – Industry Related Residential Version (201029)

1

The general rule is all ____ amp 120-volt single phase receptacles used for temporary wiring shall be GFCI protected.

15
20
30
All of these statements are true

Reference: 590.6A

86. 082 – Industry Related Residential Version (201029)

1

As a general rule, the disconnecting means for air conditioning equipment shall…

All of these statements are true
Be within sight from the unit.
Can be installed on the unit.
Be readily accessible from the unit.

Reference: 440.14

87. 081 – Industry Related Residential Version (201029)

1

Dishwasher nameplate, 8 amps (Continuous Duty, 125%)… Disposal nameplate, 3 amps… (Intermittent Duty, 85%) Can these be on the same 20-amp circuit and what is the total ampacity?

Yes, 13 amps.
No, 15 amps.
Yes, 11 amps.
Yes, 12.55 amps.

Reference: 430.24

88. 080 – Industry Related Residential Version (201029)

1

Baseboard heaters…

Generally are not allowed to be installed below a receptacle outlet as per the manufacturers instructions.
May be installed below receptacle outlets.
May be installed below receptacle outlets if over 12 ft. long.
May be installed below receptacle outlets if over 15 ft. long.

Reference: 424.10 notes

89. 079 – Industry Related Residential Version (201029)

1

If a typical residential hot water tank is connected…

A lockable disconnect can be used.
A circuit breaker within sight of the hot water tank can be used as a disconnect.
A circuit breaker capable of being locked in the open position can be used as a disconnect.
All of these statements are true

Reference: 422.31B

90. 078 – Industry Related Residential Version (201029)

1

Which ceiling paddle fan installation meets code?

None of these statements are true
A fan less than 40 lbs. supported by an outlet box.
A fan less than 50 lbs. supported by an outlet box.
A fan less than 35 lbs. supported by an outlet box listed for such a use.

Reference: 422.18

91. 077 – Industry Related Residential Version (201029)

1

Recessed fixtures (can lights)…

None of these statements are true
Can have thermal insulation installed next to the ballast if it is not installed within 2 inches
Can have thermal insulation installed next to the enclosure or ballast.
Can have thermal insulation installed next to the enclosure or ballast if identified suitable for direct contact (IC type).

Reference: 410.116A&B

92. 075 – Industry Related Residential Version (201029)

1

Which type of fixture is not allowed in a clothes closet?

A fluorescent with an open lamp.
A fluorescent with an enclosed lamp.
All of these statements are true
An incandescent with an enclosed lamp.

Reference: 410.16C

93. 071 – Industry Related Residential Version (201029)

1

On a circuit, a 2-wire non-grounding existing receptacle is replaced with a GFCI type. It needs to be marked…

Not grounded.
No Grounded Conductor
No Equipment Ground.
GFCI Protected.

Reference: 406.4D

94. 070 – Industry Related Residential Version (201029)

1

As a general rule, a new installation of a snap switch….

Requires it to be grounded if a job specification recommends it.
Requires it to be grounded whether or not a metal faceplate is installed.
Requires a 20-amp rated switch minimum.
Is not required to be grounded.

Reference: 404.9B

95. 069 – Industry Related Residential Version (201029)

1

A switch needs to be located so that the operating handle when installed will not be higher than…

6 ft. 8 inches.
6 ft. 6 inches.
6 ft.
6 ft. 7 inches.

Reference: 404.8

96. 068 – Industry Related Residential Version (201029)

1

A light fixture mounted on a junction box is located near the ground for landscape lighting.

All of these statements are true
2 threaded rigid metal conduits wrench tight supported within 18" can be the sole support for the box.,Wrong:2 threaded intermediate metal conduits wrench tight supported within 18" can be the sole support for the box.
Rigid Nonmetallic Conduit (RNC or PVC) is not allowed to support a fixture.

Reference: 352.10 (I), 314.23F

97. 067 – Industry Related Residential Version (201029)

1

Rigid Nonmetallic Conduit (RNC or PVC) expands and contracts when installed outdoors. If this change is _____ or greater in a strait run between securely mounted items, expansion fittings are needed.

.5 inches.
.25 inches.
Any change requires an expansion fitting.
1 inch.

Reference: 352.44

98. 066 – Industry Related Residential Version (201029)

1

When installing a (RNC or PVC) Rigid Nonmetallic Conduit expansion joint…

All of these statements sound like good ideas.
If installing it on a vertical run, put the joint down so water won't run down inside.
If installing in direct sunlight, compensate for temperature.
Do not install it all the way open or closed, compensate for today's temperature.

Reference: 352.44

99. 065 – Industry Related Residential Version (201029)

1

2-inch Rigid Nonmetallic Conduit (RNC or PVC) shall be supported at least every…

6 ft.
10 ft.
5 ft.
8 ft.

Reference: 352.30B

100. 064 – Industry Related Residential Version (201029)

1

Flexible Metal Conduit (FMC or Flex) may have up to ____ quarter bends per run.

3
4
6
5

Reference: 348.24B

101. 063 – Industry Related Residential Version (201029)

1

A # 8 copper Nonmetallic-Sheathed Cable (romex) conductor is rated at ___ amps using the ___ column of Table 310-16.

None of these statements are true
50, 75 degree C.
40, 60 degree C.
55, 90 degree C.

Reference: 334.80, Table 310.16

102. 062 – Industry Related Residential Version (201029)

1

Flat Nonmetallic-Sheathed Cable (Romex) cannot…

Be secured by cable ties.
Be secured by straps.
Be secured by staples.
Be stapled on edge.

Reference: 334.40

103. 061 – Industry Related Residential Version (201029)

1

Where Nonmetallic-Sheathed Cable (romex) cable is installed within ___ ft. of an attic access without a permanent ladder, it shall be protected by running boards.

3
5
6
7

Reference: 334.23

104. 060 – Industry Related Residential Version (201029)

1

Where Nonmetallic-Sheathed Cable (romex) passes through a floor, it shall be protected by a conduit at least ___ inches above the floor.

5
8
6
4

Reference: 334.15B

105. 058 – Industry Related Residential Version (201029)

1

A (RNC or PVC) Rigid Nonmetallic Conduit is installed as a sleeve or chase from a surface mounted panelboard, which does not penetrate a structural ceiling. “Jack Piping”

This conduit can be 20 feet in length.
This conduit shall not be less than 12 inches in length.
None of these statements are true
Nonmetallic-Sheathed Cable (romex) is allowed to be installed in this raceway.

Reference: 312.5C

106. 056 – Industry Related Residential Version (201029)

1

On a single phase, 225 amp dwelling service, the minimum ungrounded (hot) conductor size is…

300 Kcmil Aluminum.
83% of the service rating.
2/0 Copper.
4/0 Copper.

Reference: 310.12A

107. 055 – Industry Related Residential Version (201029)

1

If Nonmetallic-Sheathed Cable (romex) are bundled together for longer than ___ inches, they shall be derated for allowable ampacities.

36
12
18
24

Reference: 310.15C 1

108. 052 – Industry Related Residential Version (201029)

1

Raceways exposed to different temperatures…

Need to be sealed when exposed to widely different temperatures.
Need to be sealed to prevent air exchange and circulation.
Need not be sealed and needs not to be prevented.
Need to be sealed in commercial applications only.

Reference: 300.7

109. 051 – Industry Related Residential Version (201029)

1

When direct burial cable emerges from the ground, unless 30 volts or less or 20 amp residential GFCI circuits, it shall be protected by a raceway ___ inches below grade and up to ___ feet above grade.

24; 10.
18; 10.
24; 8.
18; 8.

Reference: 300.5D 1

110. 050 – Industry Related Residential Version (201029)

1

Given an underground service lateral from a power company transformer to a customer owned service that you need to install.

If not encased in concrete, a warning ribbon must be placed in the trench at least 6 inches above the installation.
None of these statements are true
If not encased in concrete, a warning ribbon must be placed in the trench along side with the installation.
If not encased in concrete, a warning ribbon must be placed in the trench at least 12 inches above the installation.

Reference: 300.5D 3

111. 049 – Industry Related Residential Version (201029)

1

When installing Nonmetallic Sheathed Cable (Romex) through metal stud framing members…

Nonmetallic-Sheathed Cable (Romex) is not allowed in metal stud framing.
A bushing or grommet is required only for factory cut holes.
A bushing or grommet is required only for field-punched holes.
A bushing or grommet is required in the opening.

Reference: 300.4B 1

112. 048 – Industry Related Residential Version (201029)

1

When determining a proper depth of a ditch for an underground conduit.

Measure from the bottom of the ditch.
Measure from the top of the conduit.
Measure from the center of the conduit.
There is no specific requirement.

Reference: Table 300.5_notes

113. 044 – Industry Related Residential Version (201029)

1

If a made electrode (ground rod) is to be used to ground a service….

They can, as a last resort, be buried in a 2 1/2 ft. deep ditch.
All of these statements are true
If practicable, they need to be installed below moisture level.
They can be driven at a 45* angle if rock is found.

Reference: 250.53A 4

114. 042 – Industry Related Residential Version (201029)

1

When a metal underground water pipe is used as an electrode…

If a rod is not 25 ohms or less, another additional rod must be used.
It must be supplemented with a ground rod.
None of these statements are true
Both of these statements are true

Reference: 250.53D 2

115. 041 – Industry Related Residential Version (201029)

1

If it is available on the job site, a metal water pipe that enters the building and is in direct contact with earth for ___ feet or more shall be connected as an electrode within ___ from emergence from the ground.

10, 20 feet
10, anywhere
5, 10 feet
5, 5 feet

Reference: 250.52A, 250.68C

116. 040 – Industry Related Residential Version (201029)

1

When an existing second building is supplied from the first, the neutral can be bonded when…

There are not metal pipes or other continuous metal paths between the buildings.
An equipment-grounding conductor is not ran.
None of these statements are true
Both of these statements are true

Reference: 250.32B ex

117. 039 – Industry Related Residential Version (201029)

1

Conductors for a feeder where the ampere rating does not match with a standard circuit breaker…

All of these statements are true
Can be used with the next higher standard breaker size.
Can be used with the next higher standard breaker size if it is under 800 amps.
Must be used with a breaker the next lower standard size.

Reference: 240.4B

118. 038 – Industry Related Residential Version (201029)

1

The minimum service entrance conductor ampacity is…

60 amps for other loads.
30 amps for a two-circuit installation.
All of these statements are true
100 amps for a one family dwelling.

Reference: 230.79

119. 037 – Industry Related Residential Version (201029)

1

Which is not an acceptable grouping of service disconnects?

2 disconnects installed together outside.
2 disconnects installed together inside and one 50 ft. away outside for a fire pump.
2 disconnects installed together inside.
1 disconnect installed outside and 3 inside.

Reference: 230.72

120. 035 – Industry Related Residential Version (201029)

1

Service entrance conductors…

Cannot be spliced unless the authority having jurisdiction gives express permission.
Can be spliced.
None of these statements are true
Cannot be spliced.

Reference: 230.46

121. 034 – Industry Related Residential Version (201029)

1

A house with a separate structure like a shop has one service location with one service lateral with the meter attached to the home.

At the meter, you can have 2 disconnects grouped together outside, one for the home, the other for the shop.
You can have one disconnect at and for the home and another at and for the shop. (A meter loop.)
Both of these statements are true
None of these statements are true

Reference: 230.40 ex 3

122. 033 – Industry Related Residential Version (201029)

1

Service-drops not over 600 volts require…

8 ft. of clearance over sidewalks.
All of these statements are true
18 ft. of clearance over parking areas.
10 ft. of clearance over residential property driveways.

Reference: 230.24B

123. 032 – Industry Related Residential Version (201029)

1

Open service conductors installed on buildings require…

4 feet minimum clearance from windows if they can be opened.
3 feet minimum clearance from windows.
3 feet minimum clearance from windows if they can be opened.
4 feet minimum clearance from windows.

Reference: 230.9A

124. 031 – Industry Related Residential Version (201029)

1

An outside pole light…

Requires a disconnect on or at the pole.
Requires a lockout at the panel.
Does not require a disconnect on or at the pole.
None of these statements are true

Reference: 225.31 ex 4

125. 030 – Industry Related Residential Version (201029)

1

Which is not a true statement of an outside feeder from one building to another?

If building #2 is supplied by more than one feeder, permanent identification is required.
The disconnect in (A) above must be suitable for use as service equipment.
A disconnect is required at building #2.
Building #2 is limited to 8 disconnects grouped in one location.

Reference: 225.31, 36, 37

126. 028 – Industry Related Residential Version (201029)

1

A wall switch for a light is required at each outdoor entry…

None of these statements are true
In dwelling units.
In commercial buildings.
In dwelling, commercial and industrial buildings.

Reference: 210.70A

127. 026 – Industry Related Residential Version (201029)

1

An air conditioner…

Requires an outlet within 25 Ft.
Requires an outlet on the same level for servicing it.
All of these statements are true.
Requires an outlet if it is a 2 family dwelling.

Reference: 210.63

128. 025 – Industry Related Residential Version (201029)

1

If installed in an attic, does a furnace require a 15 – 20 amp rated outlet for servicing the unit?

No, only on rooftops within 25 ft.
Yes, but only for dwelling units.
Yes, accessible and on the same level within 25 ft.
No, only on rooftops and in crawl spaces.

Reference: 210.63

129. 023 – Industry Related Residential Version (201029)

1

A 1500 square foot home; what are the least # of required circuits for lighting, small appliances, and laundry, with wood heat, (at 20 amp circuits)?

5
8
7
6

Reference: 210.52, 220.41

130. 022 – Industry Related Residential Version (201029)

1

For a one family dwelling where part of the basement is finished but another portion is not….

An additional outlet is not required in the unfinished portion.
Two additional outlets are required in the unfinished portion.
None of these statements are true.
An additional outlet is required in the unfinished portion.

Reference: 210.52G

131. 019 – Industry Related Residential Version (201029)

1

In a dwelling unit kitchen where the exception allows a receptacle to be installed below the countertop, to count, the counter lip shall extend no more than ___ beyond the counter.

8 inches.
This no longer counts.
10 inches.
12 inches.

Reference: 210.52C 3

132. 017 – Industry Related Residential Version (201029)

1

A GFCI protected 20-amp small appliance branch circuit…

All of these statements are true
May serve more than one kitchen.
May not serve more than one kitchen.
May serve more than one but it is not recommended.

Reference: 210.52B 3

133. 016 – Industry Related Residential Version (201029)

1

A dwelling unit small appliance branch circuit for the kitchen cannot…

Include a receptacle for a refrigerator.
Include a receptacle for a gas fired range.
All of these statements are true
Include an outside outlet.

Reference: 210.52B 2

134. 013 – Industry Related Residential Version (201029)

1

What is the maximum amperage allowed in a house for a 120-volt cord and plug connected load for a 15-amp circuit?

10
11
13
12

Reference: Table 210.21B 2

135. 012 – Industry Related Residential Version (201029)

1

Given, 4 lights at 120 volts at 4.2 amps each on for over 3 hours at a time. How many minimum 20-amp circuits are needed to serve this load?

1
4
2
3

Reference: 210.20A

136. 010 – Industry Related Residential Version (201029)

1

In a dwelling unit, the washing machine shall _____.

None of these statements are true
Both of these statements are true
be installed on a separate 20-amp circuit and this circuit can serve laundry receptacle outlets in the laundry room.
be installed on a separate 20-amp circuit.

Reference: 210.11C

137. 009 – Industry Related Residential Version (201029)

1

Which does not require a GFCI protection device for a dwelling unit?

A single receptacle for a freezer in a garage.
Workbench outlet in a garage.
One duplex receptacle for a freezer in a garage.
All of these require GFCI protection.

Reference: 210.8A

138. 006 – Industry Related Residential Version (201029)

1

A multiwire branch circuit for a hot water tank using a line-to-line load requires…

None of these statements are true
Two single pole breakers with an approved handle tie.
Both of these statements are true
A double pole circuit breaker.

Reference: 240.15B, 210.4B

139. 002 – Industry Related Residential Version (201029)

1

When the term “In sight from” is used in the Code, what is the maximum distance permitted?

30 feet.
75 feet.
50 feet.
25 feet.

Reference: Definitions

140. 001 – Industry Related Residential Version (201029)

1

An area is considered a bathroom if…

All of these statements are true
It includes a sink and a shower.
It includes a sink and a toilet.
It includes a sink and a tub.

Reference: Definitions

(509) 488-0899

1. 200 – Industry Related Residential Version (201029)

2. 199 – Industry Related Residential Version (201029)

3. 198 – Industry Related Residential Version (201029)

4. 196 – Industry Related Residential Version (201029)

5. 195 – Industry Related Residential Version (201029)

6. 194 – Industry Related Residential Version (201029)

7. 193 – Industry Related Residential Version (201029)

8. 192 – Industry Related Residential Version (201029)

9. 190 – Industry Related Residential Version (201029)

10. 186 – Industry Related Residential Version (201029)

11. 184 – Industry Related Residential Version (201029)

12. 183 – Industry Related Residential Version (201029)

13. 182 – Industry Related Residential Version (201029)

14. 181 – Industry Related Residential Version (201029)

15. 180 – Industry Related Residential Version (201029)

16. 179 – Industry Related Residential Version (201029)

17. 178 – Industry Related Residential Version (201029)

18. 176 – Industry Related Residential Version (201029)

19. 175 – Industry Related Residential Version (201029)

20. 174 – Industry Related Residential Version (201029)

21. 173 – Industry Related Residential Version (201029)

22. 172 – Industry Related Residential Version (201029)

23. 170 – Industry Related Residential Version (201029)

24. 168 – Industry Related Residential Version (201029)

25. 167 – Industry Related Residential Version (201029)

26. 166 – Industry Related Residential Version (201029)

27. 165 – Industry Related Residential Version (201029)

28. 164 – Industry Related Residential Version (201029)

29. 162 – Industry Related Residential Version (201029)

30. 159 – Industry Related Residential Version (201029)

31. 158 – Industry Related Residential Version (201029)

32. 157 – Industry Related Residential Version (201029)

33. 156 – Industry Related Residential Version (201029)

34. 155 – Industry Related Residential Version (201029)

35. 153 – Industry Related Residential Version (201029)

36. 152 – Industry Related Residential Version (201029)

37. 150 – Industry Related Residential Version (201029)

38. 149 – Industry Related Residential Version (201029)

39. 148 – Industry Related Residential Version (201029)

40. 147 – Industry Related Residential Version (201029)

41. 145 – Industry Related Residential Version (201029)

42. 144 – Industry Related Residential Version (201029)

43. 143 – Industry Related Residential Version (201029)

44. 141 – Industry Related Residential Version (201029)

45. 140 – Industry Related Residential Version (201029)

46. 139 – Industry Related Residential Version (201029)

47. 138 – Industry Related Residential Version (201029)

48. 136 – Industry Related Residential Version (201029)

49. 135 – Industry Related Residential Version (201029)

50. 134 – Industry Related Residential Version (201029)

51. 133 – Industry Related Residential Version (201029)

52. 132 – Industry Related Residential Version (201029)

53. 131 – Industry Related Residential Version (201029)

54. 130 – Industry Related Residential Version (201029)

55. 128 – Industry Related Residential Version (201029)

56. 125 – Industry Related Residential Version (201029)

57. 124 – Industry Related Residential Version (201029)

58. 122 – Industry Related Residential Version (201029)

59. 120 – Industry Related Residential Version (201029)

60. 119 – Industry Related Residential Version (201029)

61. 118 – Industry Related Residential Version (201029)

62. 117 – Industry Related Residential Version (201029)

63. 116 – Industry Related Residential Version (201029)

64. 114 – Industry Related Residential Version (201029)

65. 113 – Industry Related Residential Version (201029)

66. 111 – Industry Related Residential Version (201029)

67. 109 – Industry Related Residential Version (201029)

68. 108 – Industry Related Residential Version (201029)

69. 106 – Industry Related Residential Version (201029)

70. 104 – Industry Related Residential Version (201029)

71. 103 – Industry Related Residential Version (201029)

72. 101 – Industry Related Residential Version (201029)

73. 099 – Industry Related Residential Version (201029)

74. 098 – Industry Related Residential Version (201029)

75. 097 – Industry Related Residential Version (201029)

76. 095 – Industry Related Residential Version (201029)

77. 094 – Industry Related Residential Version (201029)

78. 093 – Industry Related Residential Version (201029)

79. 091 – Industry Related Residential Version (201029)