IEC Final Exam
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1. Which of these is the symbol used for a 4-way switch?: c.$4
2. Lighted handle toggle switches utilize a neon lamp that is illuminated when
the switch is in the ___ position.: b.OFF
3. The ungrounded conductor is often called the ___.: hot
4. Drawing ___ in Figure 112.415 is a framed locking (not key-lock) type
switch.: Not D.VI or E.None of these
5. To convert a conventional duplex receptacle into a split-wired receptacle,
the ___ is removed.: tab
6. Refer to Figure 112.31. The light is ___.: switched
7. Refer to Figure 128.110. Which of the drawings shows the (3-lamp) 2 x 4
luminaire correctly connected? The "outboard" or 2-lamp ballast is to be con-
trolled from switch #1 and the "inboard" or 1-lamp ballast is to be controlled
from switch #2.: neither I nor II
8. The attachment cord cap (plug) shown in Figure 112.233 is connected to a
table lamp. Tab 2 is connected to the ___ conductor of the branch circuit when
the cord cap is plugged into a wall receptacle.: Not ungrounded
9. What type of switch would you use to control a lighting load from one
location only?: Single pole
10. SPST is an abbreviation for ___.: Single Pole-Single Throw
11. The neutral conductor of a 120-volt circuit is referred to as the ___ conduc-
tor in the NEC®.: grounded
12. The "hot" conductor of a circuit is referred to as the ___ conductor in the
NEC®.: ungrounded
13. When installed as the neutral for a 120-volt circuit, the neutral is considered
to be a current-carrying conductor.: True
14. Which of the following is an example of a "device?": GFCI receptacle
15. The color of the insulation of a neutral conductor that is 8 AWG shall be
___.
I. white II. bare III. gray: I or III only
16. An insulated grounded conductor of 6 AWG or smaller shall be identified
by a continuous white or gray outer finish or by ___ continuous white stripes
on other than green insulation along its entire length.: 3
17. What conductor in a circuit cannot be marked with a color of white or
gray?
I. grounded II. equipment grounding III. ungrounded: II & III only
18. Where installed in conduit, which of the following wire colors are permitted
for "hots," travelers, and switch legs of a circuit?
I. black, red, and blue
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II. brown, orange, and yellow
III. pink, black, and blue: I or II or III
19. What conductor in a circuit can be marked with a green color?
I. grounded II. equipment grounding III. ungrounded: II only
20. A luminaire has one blue wire and one white wire for field connection.
When using cable (NM, AC, or MC for example), the wire connected to the blue
wire from the luminaire ___.: must have colored insulation (not green or white or
gray)
21. The Code section that addresses sensor (automatic) control of lighting in
a restaurant bathroom is ___. Select N/A (not applicable) if there is not a Code
reference for this.: N/A
22. For stairway lighting, a typical installation is to install a 3-way switching
system. For a commercial building, ___ for stairway lighting control.: there are
no NEC® requirements
23. Both lamps are to be controlled from the switch. Which of the connection
diagrams shown in Figure 112.511 is wired to operate correctly and does not
violate 200.7 in the NEC®? Type AC 12-2 and 12-3 cables are used between the
outlet boxes. Future wall access is available as required in NEC® 404.2(C)(2).-
: IV only
24. Refer to Figure 112.512. The lamp on the right is to be ON constantly (as a
night light) and the lamp on the left is to be controlled from the switch. Which
of the connection diagrams is wired to operate correctly and does not violate
200.7 in the NEC®? Type AC 12-2 and 12-3 cables are used between the outlet
boxes. Future wall access is available as required in NEC® 404.2(C)(2).: none
of these
25. The lamp shown in Figure 122.514 is to be controlled from either switch.
Which of the following statements is true for Connection Diagram B? No wall
access is available for future cable installation.
I. It is wired to operate correctly.
II. The markings on the white conductor do not violate 200.7(C)(1) in the
NEC®.
III. This installation meets the requirements of NEC® 404.2(C).: Not I & II only
26. Which of the connection diagrams shown below is wired to operate cor-
rectly so that the lamp can be controlled from any switch and the markings
on the white conductors do not violate NEC® 200.7? Future wall access is
available as required in NEC® 404.2(C)(2).: B , 2nd option pic
27. Grounding is covered in Article ___ in the NEC®.: 250
28. For lighting circuits, NEC® Section 404.2(C) requires a(n) ___ conductor to
be provided in each switch box or enclosure.: grounded
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29. Light switches (toggle switches) are rated for the maximum ___.
I. voltage II. current: both I & II
30. A ___ switch is permitted to be used to control a 120-volt fluorescent
lighting circuit.: either a or b
31. Is it permitted to control a 120-volt incandescent (tungsten filament) light-
ing circuit with a switch rated for 15 A and 120-277 V? The circuit has 9 fixtures
and each fixture will have a 200 W, 120-V lamp installed in it.: Yes
32. CO/ALR switches must be used when aluminum building wire is to be
terminated.: True
33. A single-pole, double-throw switch has ___ screw terminals for the con-
nection of current-carrying circuit conductors.: Not Four
34. For the connection of current-carrying circuit conductors, a DPST switch
has ___ screw terminals.: four
35. Refer to Figure 112.020. In Diagram II, are the conductors correctly con-
nected so that the light can be controlled from either switch?: Yes
36. Refer to Figure 112.040. Which wiring diagram is correctly connected for a
pilot light switch?: IV
37. Refer to Figure 112.711. Switch 2 controls the ___.: luminaire
38. A circuit breaker is a switch that when in the "off" position ___ the circuit.-
: opens
39. The switch element at Point B in Figure 112.411 is the ___ of the switch.: Not
Body
40. If you need more than two switches to control a light, you will need at least
one:: four-way switch
41. Switches that are rated for AC-DC produce a "snapping" sound when the
toggle is operated.: True
42. How many 4-way switches are required to control a light from five loca-
tions?: 3
43. Refer to Figure 112.413. The switch can accept wire as large as ___ AWG.-
: 10
44. Refer to Figure 112.413. The switch is suitable for back-wiring using ___
copper wire.
I. stranded II. solid: either I or II
45. SPST switches are commonly called "___" switches.: single-pole
46. The operation diagram for a four-way switch is shown at ___ in Figure
112.005.: IV
47. Refer to Figure 123.31. An ungrounded conductor should be connected to
the ___ terminal on this receptacle.: D, black rectangle
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1. Which of these is the symbol used for a 4-way switch?: c.$4
2. Lighted handle toggle switches utilize a neon lamp that is illuminated when
the switch is in the ___ position.: b.OFF
3. The ungrounded conductor is often called the ___.: hot
4. Drawing ___ in Figure 112.415 is a framed locking (not key-lock) type
switch.: Not D.VI or E.None of these
5. To convert a conventional duplex receptacle into a split-wired receptacle,
the ___ is removed.: tab
6. Refer to Figure 112.31. The light is ___.: switched
7. Refer to Figure 128.110. Which of the drawings shows the (3-lamp) 2 x 4
luminaire correctly connected? The "outboard" or 2-lamp ballast is to be con-
trolled from switch #1 and the "inboard" or 1-lamp ballast is to be controlled
from switch #2.: neither I nor II
8. The attachment cord cap (plug) shown in Figure 112.233 is connected to a
table lamp. Tab 2 is connected to the ___ conductor of the branch circuit when
the cord cap is plugged into a wall receptacle.: Not ungrounded
9. What type of switch would you use to control a lighting load from one
location only?: Single pole
10. SPST is an abbreviation for ___.: Single Pole-Single Throw
11. The neutral conductor of a 120-volt circuit is referred to as the ___ conduc-
tor in the NEC®.: grounded
12. The "hot" conductor of a circuit is referred to as the ___ conductor in the
NEC®.: ungrounded
13. When installed as the neutral for a 120-volt circuit, the neutral is considered
to be a current-carrying conductor.: True
14. Which of the following is an example of a "device?": GFCI receptacle
15. The color of the insulation of a neutral conductor that is 8 AWG shall be
___.
I. white II. bare III. gray: I or III only
16. An insulated grounded conductor of 6 AWG or smaller shall be identified
by a continuous white or gray outer finish or by ___ continuous white stripes
on other than green insulation along its entire length.: 3
17. What conductor in a circuit cannot be marked with a color of white or
gray?
I. grounded II. equipment grounding III. ungrounded: II & III only
18. Where installed in conduit, which of the following wire colors are permitted
for "hots," travelers, and switch legs of a circuit?
I. black, red, and blue
, IEC Final Exam
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II. brown, orange, and yellow
III. pink, black, and blue: I or II or III
19. What conductor in a circuit can be marked with a green color?
I. grounded II. equipment grounding III. ungrounded: II only
20. A luminaire has one blue wire and one white wire for field connection.
When using cable (NM, AC, or MC for example), the wire connected to the blue
wire from the luminaire ___.: must have colored insulation (not green or white or
gray)
21. The Code section that addresses sensor (automatic) control of lighting in
a restaurant bathroom is ___. Select N/A (not applicable) if there is not a Code
reference for this.: N/A
22. For stairway lighting, a typical installation is to install a 3-way switching
system. For a commercial building, ___ for stairway lighting control.: there are
no NEC® requirements
23. Both lamps are to be controlled from the switch. Which of the connection
diagrams shown in Figure 112.511 is wired to operate correctly and does not
violate 200.7 in the NEC®? Type AC 12-2 and 12-3 cables are used between the
outlet boxes. Future wall access is available as required in NEC® 404.2(C)(2).-
: IV only
24. Refer to Figure 112.512. The lamp on the right is to be ON constantly (as a
night light) and the lamp on the left is to be controlled from the switch. Which
of the connection diagrams is wired to operate correctly and does not violate
200.7 in the NEC®? Type AC 12-2 and 12-3 cables are used between the outlet
boxes. Future wall access is available as required in NEC® 404.2(C)(2).: none
of these
25. The lamp shown in Figure 122.514 is to be controlled from either switch.
Which of the following statements is true for Connection Diagram B? No wall
access is available for future cable installation.
I. It is wired to operate correctly.
II. The markings on the white conductor do not violate 200.7(C)(1) in the
NEC®.
III. This installation meets the requirements of NEC® 404.2(C).: Not I & II only
26. Which of the connection diagrams shown below is wired to operate cor-
rectly so that the lamp can be controlled from any switch and the markings
on the white conductors do not violate NEC® 200.7? Future wall access is
available as required in NEC® 404.2(C)(2).: B , 2nd option pic
27. Grounding is covered in Article ___ in the NEC®.: 250
28. For lighting circuits, NEC® Section 404.2(C) requires a(n) ___ conductor to
be provided in each switch box or enclosure.: grounded
, IEC Final Exam
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29. Light switches (toggle switches) are rated for the maximum ___.
I. voltage II. current: both I & II
30. A ___ switch is permitted to be used to control a 120-volt fluorescent
lighting circuit.: either a or b
31. Is it permitted to control a 120-volt incandescent (tungsten filament) light-
ing circuit with a switch rated for 15 A and 120-277 V? The circuit has 9 fixtures
and each fixture will have a 200 W, 120-V lamp installed in it.: Yes
32. CO/ALR switches must be used when aluminum building wire is to be
terminated.: True
33. A single-pole, double-throw switch has ___ screw terminals for the con-
nection of current-carrying circuit conductors.: Not Four
34. For the connection of current-carrying circuit conductors, a DPST switch
has ___ screw terminals.: four
35. Refer to Figure 112.020. In Diagram II, are the conductors correctly con-
nected so that the light can be controlled from either switch?: Yes
36. Refer to Figure 112.040. Which wiring diagram is correctly connected for a
pilot light switch?: IV
37. Refer to Figure 112.711. Switch 2 controls the ___.: luminaire
38. A circuit breaker is a switch that when in the "off" position ___ the circuit.-
: opens
39. The switch element at Point B in Figure 112.411 is the ___ of the switch.: Not
Body
40. If you need more than two switches to control a light, you will need at least
one:: four-way switch
41. Switches that are rated for AC-DC produce a "snapping" sound when the
toggle is operated.: True
42. How many 4-way switches are required to control a light from five loca-
tions?: 3
43. Refer to Figure 112.413. The switch can accept wire as large as ___ AWG.-
: 10
44. Refer to Figure 112.413. The switch is suitable for back-wiring using ___
copper wire.
I. stranded II. solid: either I or II
45. SPST switches are commonly called "___" switches.: single-pole
46. The operation diagram for a four-way switch is shown at ___ in Figure
112.005.: IV
47. Refer to Figure 123.31. An ungrounded conductor should be connected to
the ___ terminal on this receptacle.: D, black rectangle
