1. 200 – Industry Related Residential Version (201029)

1

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

340
336
338
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.

1
3
2
No separation is needed.

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

Reference: 725.136A&B

4. 197 – Industry Related Residential Version (201029)

1

A residential bathroom has a hydromassage tub with a metal pump motor, which is not double insulated. It shall be bonded with ___________ to the metal piping system.

#6 AWG stranded CU
#8 AWG solid CU
None of these statements are true
#8 AWG stranded CU

Reference: 680.74

5. 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 ___________.

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

Reference: 680.43

6. 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.

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

Reference: 680.43B 1

7. 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.

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

Reference: 680.41

8. 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
#10 solid or stranded
#8 solid or stranded
#8 solid (due to possible corrosive influences that may adversely affect stranded conductors)

Reference: 680.26B

9. 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 120 volt branch circuit (not required to be GFCI protected) used for outside lights.
The 240 volt branch circuit for the pool pump motor without GFCI protection.
None of these statements are true

Reference: 680.23F 3

10. 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
10, 15, 6.5
5, 10, 2005

Reference: 680.22A 1

11. 189 – Industry Related Residential Version (201029)

1

A one family dwelling unit swimming double insulated pool pump motor circuit connection may be installed with _____ in the interior of the structure.

Type MC cable listed for the location
Rigid Nonmetalic Conduit (PVC, RNC)
All of these Chapter 3 methods are allowed
NM cable (Romex)

Reference: 680.21 A2

12. 188 – Industry Related Residential Version (201029)

1

Insulated service drop conductors rated 120 volts to ground with a bare grounded neutral conductor is installed over a swimming pool. They shall be a minimum of _____ feet above the water level.

27
22.5
10
25

Reference: Table 680.9A

13. 187 – Industry Related Residential Version (201029)

1

A park trailer is intended to be used for ___________.

a permanent dwelling
seasonal use
temporary office use
None of these statements are true

Reference: 552.4

14. 185 – Industry Related Residential Version (201029)

1

The minimum size service for a mobile home in a mobile home park is _____ amperes.

100
150
80
200

Reference: 550.32C

15. 184 – Industry Related Residential Version (201029)

1

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

installed with the metal equipment enclosure junction box isolated
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

Reference: 550.16A, 250.104

16. 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
3
Unlimited
5

Reference: 590.4C

17. 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
4
6
10

Reference: 440.64

18. 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.

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

Reference: 430.102, 440.14

19. 180 – Industry Related Residential Version (201029)

1

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

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

Reference: 424.44E

20. 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 _____.

6
7
8
5

Reference: 424.4

21. 178 – Industry Related Residential Version (201029)

1

Given a wall mounted oven is cord and plug connected:

A pull out drawer in the bottom of the oven could make the cord and plug accessible.
For the cord and plug to serve as the unit disconnect, it must be accessible.
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.
All of these statements are true

Reference: 422.33B

22. 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, the disconnect would be impracticable.
Yes, unless the branch circuit breaker is within sight.
No, only if the blower motor is 1/4 HP or more.

Reference: 422.31A

23. 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.

50%
125%
80%
100%

Reference: 422.11A

24. 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.

4
1
3
2

Reference: 410.68

25. 173 – Industry Related Residential Version (201029)

1

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

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

Reference: 410.16B

26. 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.

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

Reference: 410.16A Figure

27. 168 – Industry Related Residential Version (201029)

1

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

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
This is allowed if no part of the fixture is within 3 feet horizontally of the tub.

Reference: 410.10D

28. 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 ___________.

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

Reference: 406.9A

29. 166 – Industry Related Residential Version (201029)

1

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

40
30
25
20

Reference: 406.3C

30. 162 – Industry Related Residential Version (201029)

1

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

5 feet
6 feet
4.5 feet
6 feet, 7 inches

Reference: 404.8A

31. 161 – Industry Related Residential Version (201029)

1

3-way and 4-way switches shall be wired so that all the switching is done in the ___________ conductor.

grounded
grounding
ungrounded
neutral

Reference: 404.2

32. 160 – Industry Related Residential Version (201029)

1

Flexible cord cannot be used as the ___________ wiring of a structure.

Both of these statements are true
temporary
permanent
None of these statements are true

Reference: 400.12

33. 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
exceeds 35 degree C
None of these statements are true

Reference: 394.12

34. 156 – Industry Related Residential Version (201029)

1

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

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

Reference: 334.104

35. 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.

3
3.5
4.5
4

Reference: 334.30 B2

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 ___________.

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

Reference: 334.12A

37. 151 – Industry Related Residential Version (201029)

1

A luminaire (light fixture) weighs over 50 pounds and it is supported from an outlet box. The code requires _____.

This installation be specifically approved by the authority having jurisdiction.
None of these statements are true
An outlet box cannot be used as support of the fixture.
The fixture be independently supported unless the box is listed over 50 pounds.

Reference: 314.27A

38. 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
36
30

Reference: 314.23F

39. 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.

1/4
1/2
1/8
0

Reference: 314.20

40. 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.

85
100
115
110

Reference: Table 310.16

41. 145 – Industry Related Residential Version (201029)

1

There are 4 separate raceways used to enclose paralleled conductors.

2 conduits shall be rigid steel and two may be rigid nonmetallic conduit (PVC).
None of these statements are true
3 conduits shall be rigid steel and one 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.

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
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.

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.

12
18
24
6

Reference: Table 300.5

44. 142 – Industry Related Residential Version (201029)

1

What is the minimum burial depth of a Rigid Nonmetalic Conduict (PVC) when it is encased by 3 inches of concrete when it is ran under a road?

6 inches
The code is not really clear on this one, 24 inches is allowed.
0 inches
18 inches

Reference: Table 300.5

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.

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

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

Reference: 250.122A

47. 137 – Industry Related Residential Version (201029)

1

A 400 ampere residential service is installed with 2, 200 amp panels each fed with 4/0 AL ungrounded service entrance conductors. A grounding electrode conductor is needed for the metal plumbing piping system.

2, #2 AL conductors can be ran, one from each panel
2, #4 CU conductors can be ran, one from each panel
All of these statements are true
1, #2 CU conductor can be ran, with a tap outside the panel with a #4 CU ran down into the second panel

Reference: Tab250.66, 64D1

48. 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

49. 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 CU
#4 AWG CU
#6 AWG AL
#4 AWG AL

Reference: 250.64F

50. 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
Rods are not allowed as supplementary electrodes.
None of these statements are true
2

Reference: 250.54

51. 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
None of these statements are true
Outside near the foundation of the home.
Inside the garage slab under the panel.

Reference: 250.53

52. 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?

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

Reference: 250.53

53. 129 – Industry Related Residential Version (201029)

1

The electrical service for a small building is grounded to an existing underground metal water pipe where it enters the structure. This location has no other electrodes available. What is the minimum number of driven ground rods that are required for a supplementary grounding electrode?

2
0
1 (resistance to ground is more than 25 ohms)
The supplementary rod is recommended only.

Reference: 250.53D 2

54. 127 – Industry Related Residential Version (201029)

1

If the allowable current carrying capacity of a conductor does not correspond to the rating of a standard size overcurrent device, the next larger size may be used provided the current does not exceed _____ amps.

1000
800
600
400

Reference: 240.4B

55. 126 – Industry Related Residential Version (201029)

1

For a single family dwelling, the minimum size service disconnecting means shall be _____ amperes.

125
60
100
75

Reference: 230.79C

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.

4
8
3
6

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.

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

Reference: 225.36

58. 123 – Industry Related Residential Version (201029)

1

The height of a wall switch for a lighting outlet in a dwelling unit can be no more than _____.

6 feet 7 inches
4 feet
5 feet
6 feet

Reference: 404.8 A

59. 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
0
2, 3-way switches
1

Reference: 210.70A 1

60. 121 – Industry Related Residential Version (201029)

1

A wall switch in a dwelling unit can be installed ____.

Outside the room it serves
None of these statements are true
Inside the room it serves
Both of these statements are true

Reference: 210.70A

61. 118 – Industry Related Residential Version (201029)

1

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

This is allowed for one mounted on the ceiling if a wall switch is also installed.
None of these statements are true
Both of these statements are true
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.

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
25
10
50

Reference: 210.63

63. 114 – Industry Related Residential Version (201029)

1

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

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

Reference: 210.52

64. 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 12 inches of the wall
within 18 inches of the wall
within 24 inches of the wall
within 36 inches of the wall

Reference: 210.52A 3

65. 112 – Industry Related Residential Version (201029)

1

Receptacles located over _____ feet above the floor are not counted in the required number of receptacles along the wall.

4
4.5
5.5.
6

Reference: 210.52

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

Reference: 210.52B

67. 110 – Industry Related Residential Version (201029)

1

Given an island cabinet in a dwelling unit kitchen where the countertop is flat and you can’t mount a receptacle within 20 inches above the countertop, the receptacle can be a maximum of _____ inches below the countertop and still count as one of the required outlets.

18
6
This receptacle is no longer required
3

Reference: 210.52 C2

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
100
50
70

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?

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

Reference: 210.8A 6

71. 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?

None of these statements are true
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, the circuit breaker does have to be a HACR type
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.

Reference: 110.3B

72. 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.
There is no specific restriction on the number of feeders allowed.
Up to three are allowed if identified.
Two feeders are allowed if identified.

Reference: 225.30

73. 096 – Industry Related Residential Version (201029)

1

In a dwelling unit, one wall switch for a light is required at each floor level of a stairway with…

7 steps or more.
10 steps or more.
8 steps or more.
6 steps or more.

Reference: 210.70A 2

74. 094 – Industry Related Residential Version (201029)

1

A hydromassage bathtub…

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

Reference: 680.71, 73, 74

75. 093 – Industry Related Residential Version (201029)

1

Which shall have ground fault circuit interrupter protection?

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

Reference: 680.43, 56A, 71

76. 092 – Industry Related Residential Version (201029)

1

An outdoor hot tub is installed…

Requires a receptacle shall be located not further than 20 feet away.
All of these statements are true.
Requires a receptacle to be 6' 6" or lower.
Requires a receptacle shall be located at least 6 feet away.

Reference: 680.22A

77. 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…

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

Reference: 680.26B, 250.8

78. 087 – Industry Related Residential Version (201029)

1

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

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

Reference: 680.24A2

79. 086 – Industry Related Residential Version (201029)

1

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

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

Reference: 550.32F

80. 085 – Industry Related Residential Version (201029)

1

An outside mobile home disconnect shall…

A disconnect is not required for a mobile home.
Be within sight of the home.
Be within 30 feet of the home.
Be within 40 feet.

Reference: 550.32A

81. 084 – Industry Related Residential Version (201029)

1

A typical 240-volt mobile home feeder requires…

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

Reference: 550.33B

82. 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
All of these statements are true
30

Reference: 590.6A

83. 082 – Industry Related Residential Version (201029)

1

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

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

Reference: 440.14

84. 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, 12.55 amps.
Yes, 11 amps.
No, 15 amps.
Yes, 13 amps.

Reference: 430.24

85. 080 – Industry Related Residential Version (201029)

1

Baseboard heaters…

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

Reference: 424.10 notes

86. 078 – Industry Related Residential Version (201029)

1

Which ceiling paddle fan installation meets code?

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

Reference: 422.18

87. 075 – Industry Related Residential Version (201029)

1

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

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

Reference: 410.16C

88. 074 – Industry Related Residential Version (201029)

1

No hanging luminaries (light fixtures), track lights, or ceiling fans are allowed over a bathtub within ___ feet horizontally and ___ feet vertically of the tub rim.

2, 6.
3, 6.
2, 8.
3, 8.

Reference: 410.10D

89. 073 – Industry Related Residential Version (201029)

1

Which installation does not require a receptacle cover in a wet location that is weatherproof even with the plug cap inserted? (A bubble type cover)

A vending machine.
A RV plugged in for six months.
An attended portable drill motor with a 30 ampere, 250 volt receptacle.
A pump motor.

Reference: 406.9A

90. 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…

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

Reference: 406.4D

91. 070 – Industry Related Residential Version (201029)

1

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

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

Reference: 404.9B

92. 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. 6 inches.
6 ft. 7 inches.
6 ft.
6 ft. 8 inches.

Reference: 404.8

93. 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
Rigid Nonmetallic Conduit (RNC or PVC) is not allowed to support a fixture.
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.

Reference: 352.10 (I), 314.23F

94. 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.

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

Reference: 352.44

95. 066 – Industry Related Residential Version (201029)

1

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

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

Reference: 352.44

96. 065 – Industry Related Residential Version (201029)

1

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

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

Reference: 352.30B

97. 064 – Industry Related Residential Version (201029)

1

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

6
4
5
3

Reference: 348.24B

98. 062 – Industry Related Residential Version (201029)

1

Flat Nonmetallic-Sheathed Cable (Romex) cannot…

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

Reference: 334.40

99. 059 – Industry Related Residential Version (201029)

1

Type Nonmetallic-Sheathed Cable (romex) can be used in a residential building if it is ________ and the proper type construction.

3 floors above grade
3 floors above grade, with a basement 40% above grade
4 floors but the 1st level is a parking garage
All of these statements are true

Reference: 334.10

100. 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.
Nonmetallic-Sheathed Cable (romex) is allowed to be installed in this raceway.
This conduit shall not be less than 12 inches in length.
None of these statements are true

Reference: 312.5C

101. 056 – Industry Related Residential Version (201029)

1

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

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

Reference: 310.12A

102. 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
18
24
12

Reference: 310.15C 1

103. 054 – Industry Related Residential Version (201029)

1

Nonmetallic Sheathed Cable (romex) installed in a residential dwelling unit…

Can be installed perpendicular to the long dimension of an air handling space.
Both of these statements are true
None of these statements are true
Cannot be installed in the long dimension of an air handling space.

Reference: 300.22C_ex

104. 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 in commercial applications only.
Need to be sealed to prevent air exchange and circulation.
Need not be sealed and needs not to be prevented.

Reference: 300.7

105. 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.
If not encased in concrete, a warning ribbon must be placed in the trench at least 12 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.

Reference: 300.5D 3

106. 048 – Industry Related Residential Version (201029)

1

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

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

Reference: Table 300.5_notes

107. 046 – Industry Related Residential Version (201029)

1

Listed Flexible Metallic (Flex) Conduit is an approved grounding means when…

Conductors installed in the flex are rated 30 amps and on a 30 amp breaker maximum.
The total lengths of flex in a combined run are not longer than 6 feet.
All of these statements are true
The longest section of flex in a combined run is 6 feet.

Reference: 250.118 5

108. 044 – Industry Related Residential Version (201029)

1

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

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

Reference: 250.53A 4

109. 042 – Industry Related Residential Version (201029)

1

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

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

Reference: 250.53D 2

110. 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.
None of these statements are true
An equipment-grounding conductor is not ran.
Both of these statements are true

Reference: 250.32B ex

111. 039 – Industry Related Residential Version (201029)

1

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

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

Reference: 240.4B

112. 038 – Industry Related Residential Version (201029)

1

The minimum service entrance conductor ampacity is…

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

Reference: 230.79

113. 037 – Industry Related Residential Version (201029)

1

Which is not an acceptable grouping of service disconnects?

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

Reference: 230.72

114. 036 – Industry Related Residential Version (201029)

1

As a general rule, overhead service weatherheads…

Shall be below the point of attachment of the service drop.
Can be both above or below within 30 inches of the attachment of the service drop.
Shall be at the point of attachment of the service drop.
Shall be above the point of attachment of the service drop.

Reference: 230.54C

115. 035 – Industry Related Residential Version (201029)

1

Service entrance conductors…

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

Reference: 230.46

116. 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.

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

Reference: 230.40 ex 3

117. 033 – Industry Related Residential Version (201029)

1

Service-drops not over 600 volts require…

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

Reference: 230.24B

118. 032 – Industry Related Residential Version (201029)

1

Open service conductors installed on buildings require…

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

Reference: 230.9A

119. 031 – Industry Related Residential Version (201029)

1

An outside pole light…

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

Reference: 225.31 ex 4

120. 030 – Industry Related Residential Version (201029)

1

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

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

Reference: 225.31, 36, 37

121. 028 – Industry Related Residential Version (201029)

1

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

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

Reference: 210.70A

122. 027 – Industry Related Residential Version (201029)

1

A required dwelling unit wall light switch for a room…

Is required within 5 feet of a doorway.
Is required within 4 feet of a doorway.
Has no specific location requirement, just near an entrance.
Is required within 6 feet of a doorway.

Reference: 210.70A

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

Reference: 210.63

124. 024 – Industry Related Residential Version (201029)

1

In a guest room of hotel or motel, does the number of receptacle outlets installed need to comply as in a dwelling unit of Section 210-52?

Yes, and they need to be located as per those requirements.
Yes, but they can be relocated because of furniture layout.
No, number of outlets is determined by customer preference.
No, that Section does not apply.

Reference: 210.60 B

125. 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
6
7

Reference: 210.52, 220.41

126. 021 – Industry Related Residential Version (201029)

1

Two family dwellings (duplex) require how many grade level accessible outside receptacles?

One for both units.
Two, one for each unit, one in the front and the other in the back.
Four, two for each unit, two in the front and the two in the back.
None are required.

Reference: 210.52E

127. 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.

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

Reference: 210.52C 3

128. 017 – Industry Related Residential Version (201029)

1

A GFCI protected 20-amp small appliance branch circuit…

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

Reference: 210.52B 3

129. 016 – Industry Related Residential Version (201029)

1

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

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

Reference: 210.52B 2

130. 015 – Industry Related Residential Version (201029)

1

A receptacle outlet for a dwelling refrigerator….

Is not exempted from the GFCI requirements.
Can be served by an individual 15-amp circuit.
All of these statements are true.
Can be included on the 20-amp small appliance branch circuit.

Reference: 210.52B1, 210.8

131. 014 – Industry Related Residential Version (201029)

1

On a multi-family structure, which loads are permitted to be supplied from a dwelling unit?

Common pool wiring.
None of these statements are true
Central building security.
Parking lot lighting.

Reference: 210.25B

132. 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?

13
12
10
11

Reference: Table 210.21B 2

133. 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?

3
4
2
1

Reference: 210.20A

134. 010 – Industry Related Residential Version (201029)

1

In a dwelling unit, the washing machine shall _____.

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.
None of these statements are true
be installed on a separate 20-amp circuit.

Reference: 210.11C

135. 008 – Industry Related Residential Version (201029)

1

In a dwelling garage, a non-GFCI outlet installed for a Central Vacuum system shall be…

A duplex receptacle.
Installed at least 7' above the floor.
Marked "not GFCI protected.
Now not allowed, it must be GFCI protected.

Reference: 210.8A

136. 007 – Industry Related Residential Version (201029)

1

A branch circuit for a dwelling unit is ran out for a small storage building for an inside 120-volt outlet at grade level.

This receptacle is not required to be GFCI protected, but it is recommended.
If this receptacle is 20-amp, it shall not be GFCI protected.
If this receptacle is 15 or 20 amp, it shall be GFCI protected
If this receptacle is 15-amp, it shall not be GFCI protected.

Reference: 210.8A

137. 005 – Industry Related Residential Version (201029)

1

If you use a 12-3 romex as travelers between 3-way switches with the white used to supply the switch.

The white conductor shall be white with a colored green stripe.
The white conductor must be permanently re-identified where visible.
None of these statements are true
The white conductor does not have to be re-identified.

Reference: 200.7C

138. 004 – Industry Related Residential Version (201029)

1

A neutral conductor sizes ____ or smaller shall be identified by continuous gray or white insulation.

#8.
#6.
#4.
#10.

Reference: 200.6A

139. 003 – Industry Related Residential Version (201029)

1

The minimum working space for indoor electrical equipment is from the floor to ____ feet above the equipment or structural ceiling if lower.

6.5
25
15
10

Reference: 110.26A 3

140. 001 – Industry Related Residential Version (201029)

1

An area is considered a bathroom if…

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

Reference: Definitions

(509) 488-0899

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