• California CSLB
C10 Electrical 09/11/2026
Exam
California CSLB C10 Electrical Exam 2 review
test bank with over 400 questions and correct
detailed answers
Which of the following is an acceptable marking method for the grounding conductor on a grounding-type
receptacle?
A) A white-colored round-headed terminal.
B) A tag with 1/4-inch high letters.
C) An orange dot.
D) A green-colored hexagonal headed or shaped terminal screw or nut. –
Correct Answer :d)
P 1
, • California CSLB
C10 Electrical 09/11/2026
Exam
NEC Section Section 406.9(B) permits Answer D as one of the several approved methods of identifying a
grounding-type receptacle.
What type fixture wires are required when the wires are mounted on chains supporting a lighting fixture?
A)Solid conductors only.
B)Stranded conductors only.
C)Either solid or stranded.
D)Compressed aluminum conductors only. –
Correct Answer :B
NEC Section 410.28(E) requires stranded conductors to be used for wiring on fixture chains and on other
movable or flexible parts.
Flexible cords used to connect cord-connected showcase lighting must be of what type?
A)Light-duty type.
B)Extra hard-service type.
C)Hard-service type.
D)None of the above. –
Correct Answer :C
NEC Section 410.29(A) requires flexible cords used to connect showcase lighting to be of the hard-service type.
Normally, lighting fixtures must not be used as a raceway for circuit conductors execept when _____.
A)the fixtures are designed for end-to-end assembly to form a continuous raceway or fixtures connected
together by recognized wiring methods shall be permitted to carry through conductors of a two-wire or
multiwire branch circuit supplying the fixture
B)the fixtures are listed as a raceway
P 2
, • California CSLB
C10 Electrical 09/11/2026
Exam
C)one additional two-wire branch circuit separately supplying one or more of the connected fixtures described in
Answer B shall be permitted to be carried through the fixture
D)All the above. –
Correct Answer :D
NEC Section 410.32 allows all three conditions in Answers A, B, and C.
Branch circuit conductors installed within 3 inches of an electric-discharge fixture ballast must have insulation
with a tempeture rating no lower than _____.
A)90 degrees C (194 degrees F)
B)30 degrees C (86 degrees F)
C)150 degrees C (302 degrees F)
D)40 degrees C (104 degrees F) –
Correct Answer :The Correct Answer Is A
NEC Section 410.33 requires such conductors to be rated for a tempeture not lower than 90 degrees C which
includes such types as RHH, THW, THHN, FEPB, SA, and XHHW insulations.
Electric-discharge lighting fixtures must be plainly marked with their electrical rating. This marking must include
the voltage, frequency, and _____.
A)wattage
B)current rating
C)resistance
D)All the above. - Correct Answer :The Correct Answer Is B
NEC Sections 410.35(A) and (B) require the voltage and frequency to be listed along with the current rating of
the unit, including the ballast, transformer, or autotransformer.
What type of lining must be provided in wiring compartments of all non-metallic lighting fixtures?
P 3
, • California CSLB
C10 Electrical 09/11/2026
Exam
A)Glass
B)Plastic
C)Porcelain
D)Metal - Correct Answer :The Correct Answer Is D
NEC Section 410.37 requires all non-metallic lighting fixtures not made entirely of non-combustible material to
have their wiring compartments lined with metal.
Which of the following types of lampholders are approved for installation in wet or damp locations?
A)Weatherproof
B)Mogul-base type
C)Intermediate base type with explosion-proof fittings.
D)Candelabra type - Correct Answer :The Correct Answer Is A
NEC Section 410.49 requires fixtures to be of the weatherproof type when installed in wet or damp locations.
Isolated ground receptacles shall be identified by _____.
A)an orange triangle
B)a green dot
C)a permanent seal
D)standard lugs - Correct Answer :The Correct Answer Is A
NEC Section 406.2(D) requires such receptacles to have an orange triangle located on the face of the receptacle.
What is the maximum incandescent lamp wattage that may be used on medium base lampholders?
A)100 watts
B)200 watts
C)300 watts
D)400 watts - Correct Answer :The Correct Answer Is C
P 4
C10 Electrical 09/11/2026
Exam
California CSLB C10 Electrical Exam 2 review
test bank with over 400 questions and correct
detailed answers
Which of the following is an acceptable marking method for the grounding conductor on a grounding-type
receptacle?
A) A white-colored round-headed terminal.
B) A tag with 1/4-inch high letters.
C) An orange dot.
D) A green-colored hexagonal headed or shaped terminal screw or nut. –
Correct Answer :d)
P 1
, • California CSLB
C10 Electrical 09/11/2026
Exam
NEC Section Section 406.9(B) permits Answer D as one of the several approved methods of identifying a
grounding-type receptacle.
What type fixture wires are required when the wires are mounted on chains supporting a lighting fixture?
A)Solid conductors only.
B)Stranded conductors only.
C)Either solid or stranded.
D)Compressed aluminum conductors only. –
Correct Answer :B
NEC Section 410.28(E) requires stranded conductors to be used for wiring on fixture chains and on other
movable or flexible parts.
Flexible cords used to connect cord-connected showcase lighting must be of what type?
A)Light-duty type.
B)Extra hard-service type.
C)Hard-service type.
D)None of the above. –
Correct Answer :C
NEC Section 410.29(A) requires flexible cords used to connect showcase lighting to be of the hard-service type.
Normally, lighting fixtures must not be used as a raceway for circuit conductors execept when _____.
A)the fixtures are designed for end-to-end assembly to form a continuous raceway or fixtures connected
together by recognized wiring methods shall be permitted to carry through conductors of a two-wire or
multiwire branch circuit supplying the fixture
B)the fixtures are listed as a raceway
P 2
, • California CSLB
C10 Electrical 09/11/2026
Exam
C)one additional two-wire branch circuit separately supplying one or more of the connected fixtures described in
Answer B shall be permitted to be carried through the fixture
D)All the above. –
Correct Answer :D
NEC Section 410.32 allows all three conditions in Answers A, B, and C.
Branch circuit conductors installed within 3 inches of an electric-discharge fixture ballast must have insulation
with a tempeture rating no lower than _____.
A)90 degrees C (194 degrees F)
B)30 degrees C (86 degrees F)
C)150 degrees C (302 degrees F)
D)40 degrees C (104 degrees F) –
Correct Answer :The Correct Answer Is A
NEC Section 410.33 requires such conductors to be rated for a tempeture not lower than 90 degrees C which
includes such types as RHH, THW, THHN, FEPB, SA, and XHHW insulations.
Electric-discharge lighting fixtures must be plainly marked with their electrical rating. This marking must include
the voltage, frequency, and _____.
A)wattage
B)current rating
C)resistance
D)All the above. - Correct Answer :The Correct Answer Is B
NEC Sections 410.35(A) and (B) require the voltage and frequency to be listed along with the current rating of
the unit, including the ballast, transformer, or autotransformer.
What type of lining must be provided in wiring compartments of all non-metallic lighting fixtures?
P 3
, • California CSLB
C10 Electrical 09/11/2026
Exam
A)Glass
B)Plastic
C)Porcelain
D)Metal - Correct Answer :The Correct Answer Is D
NEC Section 410.37 requires all non-metallic lighting fixtures not made entirely of non-combustible material to
have their wiring compartments lined with metal.
Which of the following types of lampholders are approved for installation in wet or damp locations?
A)Weatherproof
B)Mogul-base type
C)Intermediate base type with explosion-proof fittings.
D)Candelabra type - Correct Answer :The Correct Answer Is A
NEC Section 410.49 requires fixtures to be of the weatherproof type when installed in wet or damp locations.
Isolated ground receptacles shall be identified by _____.
A)an orange triangle
B)a green dot
C)a permanent seal
D)standard lugs - Correct Answer :The Correct Answer Is A
NEC Section 406.2(D) requires such receptacles to have an orange triangle located on the face of the receptacle.
What is the maximum incandescent lamp wattage that may be used on medium base lampholders?
A)100 watts
B)200 watts
C)300 watts
D)400 watts - Correct Answer :The Correct Answer Is C
P 4
