JOURNEYMAN ELECTRICIAN EXAM PREP QUESTIONS AND
ANSWERS (VERIFIED AND WELL DETAILED AMSWERS) LATEST
UPDATE 2025/2026
What table sizes bonding jumpers for for AC systems? - CORRECT ANSWER-
250.102(C)(1)
The NEC defines continuous load to be a load where max current on the circuit
continues for at least how many hours? - CORRECT ANSWER- Three
To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than
how many current carrying conductors in a raceway? - CORRECT ANSWER-
Greater than three
Where in the NEC codebook would you find EMT sizes for a given size and
number of conductors? - CORRECT ANSWER- Annex C, Table C.1
Section 210.20(A) states that the over current protection for branch circuits
including continuous loads must be greater than 100% of the noncontinuous plus
____ of the continuous load. - CORRECT ANSWER- 125%
Liquidtight Flexible Metal Conduit shall be fastened within of each box or other
conduit termination - CORRECT ANSWER- Twelve inches
,314.28(A)(1) states that straight pulls in pull boxes with conductors size 4 AWG or
larger, box length should be greater than or equal to times the trade diameter of the
largest conduit entering box. - CORRECT ANSWER- Eight
Chapter 9 note 4 states conduit nipples less than 24 inches can fill to a max of their
cross sectional area - CORRECT ANSWER- 60 percent
Table 348.22 gives the max number of insulated conductors in size _______ FMC?
- CORRECT ANSWER- 3/8 (trade size)
Guest rooms of hotels, motels, & sleeping rooms in dorms need a MIN or _____
general purpose receptacles installed that are readily accessible? - CORRECT
ANSWER- Two
When branch-circuit conductors are contained inside a ballast compartment and
they are within 3 inches of the ballast, the conductors shall have a temperature
rating of at LEAST _____.
a) 105 degrees C
b) 90 degrees C
c) 75 degrees C
d) 60 degrees C - CORRECT ANSWER- B: 90 degrees C
Ref: 410.68
Class _____ locations are those that are hazardous because of the presence of
easily ignitible fibers or materials producing combustible flyings.
,a) I
b) II
c) III
d) IV - CORRECT ANSWER- C: III
Ref: 500.5(D)
Class _____ locations are those in which flammable gases, flammable liquid
produced vapors, or combustible liquid produced vapors are present that are
explodable. - CORRECT ANSWER- Class 1
Class ____ locations are those that are hazardous because of combustible dust -
CORRECT ANSWER- Class II
Conductors with _______ Insulation have a greater ampacity when used in a dry
location compared to when used in a wet location - CORRECT ANSWER-
THHW
When calculating total load for buildings and finding minimum branch circuit load,
what must be factored into the volt amps for an exterior electric sign? -
CORRECT ANSWER- Demand load (1.25)
Table C.11 and C.11(A) show conductor numbers for size for schedule 40 PVC,
what is the difference in charts? - CORRECT ANSWER- Compact vs stranded
conductors
332.30 states that type MI cable shall be supported at intervals of at least how
many feet? - CORRECT ANSWER- Six feet
, What table sizes equipment grounding conductors for specific over current
devices? - CORRECT ANSWER- 250.122
Wye is another term for what kind of systems? - CORRECT ANSWER- Three
phase
What is the equation for voltage drop? - CORRECT ANSWER- VD=2KID/CM
In the voltage drop equation, what is the value CM, and where is it found in the
NEC codebook? - CORRECT ANSWER- Circular mile, chapter 9, table 8
Conductors installed under at least _______ inches of concrete are considered by
NEC Section 230.6 to be outside the building. - CORRECT ANSWER- 2 inches
Conductors installed in electrically heated floors in bathrooms, kitchens, and in
hydro massage bathtub locations shall be provided with what kind of protection? -
CORRECT ANSWER- GFCI 424.44(E)
With 90 kVA and 208Y, what is the current on each ungrounded phase conductor at
full load? - CORRECT ANSWER- 90kVA/(208X1.732) 250 amps
For dwelling units, GFCI protection shall be provided for lighting outlets not
exceeding 120 volts where installed in - CORRECT ANSWER- Crawl spaces
ANSWERS (VERIFIED AND WELL DETAILED AMSWERS) LATEST
UPDATE 2025/2026
What table sizes bonding jumpers for for AC systems? - CORRECT ANSWER-
250.102(C)(1)
The NEC defines continuous load to be a load where max current on the circuit
continues for at least how many hours? - CORRECT ANSWER- Three
To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than
how many current carrying conductors in a raceway? - CORRECT ANSWER-
Greater than three
Where in the NEC codebook would you find EMT sizes for a given size and
number of conductors? - CORRECT ANSWER- Annex C, Table C.1
Section 210.20(A) states that the over current protection for branch circuits
including continuous loads must be greater than 100% of the noncontinuous plus
____ of the continuous load. - CORRECT ANSWER- 125%
Liquidtight Flexible Metal Conduit shall be fastened within of each box or other
conduit termination - CORRECT ANSWER- Twelve inches
,314.28(A)(1) states that straight pulls in pull boxes with conductors size 4 AWG or
larger, box length should be greater than or equal to times the trade diameter of the
largest conduit entering box. - CORRECT ANSWER- Eight
Chapter 9 note 4 states conduit nipples less than 24 inches can fill to a max of their
cross sectional area - CORRECT ANSWER- 60 percent
Table 348.22 gives the max number of insulated conductors in size _______ FMC?
- CORRECT ANSWER- 3/8 (trade size)
Guest rooms of hotels, motels, & sleeping rooms in dorms need a MIN or _____
general purpose receptacles installed that are readily accessible? - CORRECT
ANSWER- Two
When branch-circuit conductors are contained inside a ballast compartment and
they are within 3 inches of the ballast, the conductors shall have a temperature
rating of at LEAST _____.
a) 105 degrees C
b) 90 degrees C
c) 75 degrees C
d) 60 degrees C - CORRECT ANSWER- B: 90 degrees C
Ref: 410.68
Class _____ locations are those that are hazardous because of the presence of
easily ignitible fibers or materials producing combustible flyings.
,a) I
b) II
c) III
d) IV - CORRECT ANSWER- C: III
Ref: 500.5(D)
Class _____ locations are those in which flammable gases, flammable liquid
produced vapors, or combustible liquid produced vapors are present that are
explodable. - CORRECT ANSWER- Class 1
Class ____ locations are those that are hazardous because of combustible dust -
CORRECT ANSWER- Class II
Conductors with _______ Insulation have a greater ampacity when used in a dry
location compared to when used in a wet location - CORRECT ANSWER-
THHW
When calculating total load for buildings and finding minimum branch circuit load,
what must be factored into the volt amps for an exterior electric sign? -
CORRECT ANSWER- Demand load (1.25)
Table C.11 and C.11(A) show conductor numbers for size for schedule 40 PVC,
what is the difference in charts? - CORRECT ANSWER- Compact vs stranded
conductors
332.30 states that type MI cable shall be supported at intervals of at least how
many feet? - CORRECT ANSWER- Six feet
, What table sizes equipment grounding conductors for specific over current
devices? - CORRECT ANSWER- 250.122
Wye is another term for what kind of systems? - CORRECT ANSWER- Three
phase
What is the equation for voltage drop? - CORRECT ANSWER- VD=2KID/CM
In the voltage drop equation, what is the value CM, and where is it found in the
NEC codebook? - CORRECT ANSWER- Circular mile, chapter 9, table 8
Conductors installed under at least _______ inches of concrete are considered by
NEC Section 230.6 to be outside the building. - CORRECT ANSWER- 2 inches
Conductors installed in electrically heated floors in bathrooms, kitchens, and in
hydro massage bathtub locations shall be provided with what kind of protection? -
CORRECT ANSWER- GFCI 424.44(E)
With 90 kVA and 208Y, what is the current on each ungrounded phase conductor at
full load? - CORRECT ANSWER- 90kVA/(208X1.732) 250 amps
For dwelling units, GFCI protection shall be provided for lighting outlets not
exceeding 120 volts where installed in - CORRECT ANSWER- Crawl spaces
