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IEC Final Exam Questions and Answers (100%
Correct Answers) Already Graded A+
Which of these is the symbol used for a 4-way switch? Ans: c.$4
Lighted handle toggle switches utilize a neon lamp that is illuminated
when the switch is in the ___ position. Ans: b.OFF
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The ungrounded conductor is often called the ___. Ans: hot
Drawing ___ in Figure 112.415 is a framed locking (not key-lock) type
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switch. Ans: Not D.VI or E.None of these
To convert a conventional duplex receptacle into a split-wired
receptacle, the ___ is removed. Ans: tab
Refer to Figure 112.31. The light is ___. Ans: switched
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
controlled from switch #1 and the "inboard" or 1-lamp ballast is to be
controlled from switch #2. Ans: neither I nor II
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. Ans: Not
ungrounded
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What type of switch would you use to control a lighting load from one
location only? Ans: Single pole
SPST is an abbreviation for ___. Ans: Single Pole-Single Throw
The neutral conductor of a 120-volt circuit is referred to as the ___
conductor in the NEC®. Ans: grounded
The "hot" conductor of a circuit is referred to as the ___ conductor in the
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NEC®. Ans: ungrounded
When installed as the neutral for a 120-volt circuit, the neutral is
considered to be a current-carrying conductor. Ans: True
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Which of the following is an example of a "device?" Ans: GFCI
receptacle
The color of the insulation of a neutral conductor that is 8 AWG shall be
___.
I. white II. bare III. gray Ans: I or III only
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. Ans: 3
What conductor in a circuit cannot be marked with a color of white or
gray?
I. grounded II. equipment grounding III. ungrounded Ans: II & III only
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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
II. brown, orange, and yellow
III. pink, black, and blue Ans: I or II or III
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What conductor in a circuit can be marked with a green color?
I. grounded II. equipment grounding III. ungrounded Ans: II only
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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 ___. Ans: must have colored insulation
(not green or white or gray)
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. Ans: N/A
For stairway lighting, a typical installation is to install a 3-way switching
system. For a commercial building, ___ for stairway lighting control. Ans:
there are no NEC® requirements
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). Ans: IV only
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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). Ans: none of these
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.
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I. It is wired to operate correctly.
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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). Ans: Not I &
II only
Which of the connection diagrams shown below is wired to operate
correctly 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). Ans: B , 2nd
option pic
Grounding is covered in Article ___ in the NEC®. Ans: 250
For lighting circuits, NEC® Section 404.2(C) requires a(n) ___ conductor to
be provided in each switch box or enclosure. Ans: grounded
Light switches (toggle switches) are rated for the maximum ___.
1
IEC Final Exam Questions and Answers (100%
Correct Answers) Already Graded A+
Which of these is the symbol used for a 4-way switch? Ans: c.$4
Lighted handle toggle switches utilize a neon lamp that is illuminated
when the switch is in the ___ position. Ans: b.OFF
© 2026 Assignment Expert
The ungrounded conductor is often called the ___. Ans: hot
Drawing ___ in Figure 112.415 is a framed locking (not key-lock) type
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switch. Ans: Not D.VI or E.None of these
To convert a conventional duplex receptacle into a split-wired
receptacle, the ___ is removed. Ans: tab
Refer to Figure 112.31. The light is ___. Ans: switched
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
controlled from switch #1 and the "inboard" or 1-lamp ballast is to be
controlled from switch #2. Ans: neither I nor II
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. Ans: Not
ungrounded
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2
What type of switch would you use to control a lighting load from one
location only? Ans: Single pole
SPST is an abbreviation for ___. Ans: Single Pole-Single Throw
The neutral conductor of a 120-volt circuit is referred to as the ___
conductor in the NEC®. Ans: grounded
The "hot" conductor of a circuit is referred to as the ___ conductor in the
© 2026 Assignment Expert
NEC®. Ans: ungrounded
When installed as the neutral for a 120-volt circuit, the neutral is
considered to be a current-carrying conductor. Ans: True
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Which of the following is an example of a "device?" Ans: GFCI
receptacle
The color of the insulation of a neutral conductor that is 8 AWG shall be
___.
I. white II. bare III. gray Ans: I or III only
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. Ans: 3
What conductor in a circuit cannot be marked with a color of white or
gray?
I. grounded II. equipment grounding III. ungrounded Ans: II & III only
,For Expert help and assignment handling,
3
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
II. brown, orange, and yellow
III. pink, black, and blue Ans: I or II or III
© 2026 Assignment Expert
What conductor in a circuit can be marked with a green color?
I. grounded II. equipment grounding III. ungrounded Ans: II only
Guru01 - Stuvia
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 ___. Ans: must have colored insulation
(not green or white or gray)
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. Ans: N/A
For stairway lighting, a typical installation is to install a 3-way switching
system. For a commercial building, ___ for stairway lighting control. Ans:
there are no NEC® requirements
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). Ans: IV only
, For Expert help and assignment handling,
4
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). Ans: none of these
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.
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I. It is wired to operate correctly.
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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). Ans: Not I &
II only
Which of the connection diagrams shown below is wired to operate
correctly 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). Ans: B , 2nd
option pic
Grounding is covered in Article ___ in the NEC®. Ans: 250
For lighting circuits, NEC® Section 404.2(C) requires a(n) ___ conductor to
be provided in each switch box or enclosure. Ans: grounded
Light switches (toggle switches) are rated for the maximum ___.
