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Journeyman electrician exam prep With complete solution | Latest 2024/25 Rated A+
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Journeyman electrician exam prep Withcomplete solution | Latest 2024/25 Rated
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What table sizes bonding jumpers for for AC systems? - 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? - 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? - Greater than three
Where in the NEC codebook would you find EMT sizes for a given size and number of
conductors? - 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. - 125%
Liquidtight Flexible Metal Conduit shall be fastened within of each box or other conduit
termination - 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. - Eight
Chapter 9 note 4 states conduit nipples less than 24 inches can fill to a max of their
cross sectional area - 60 percent
Table 348.22 gives the max number of insulated conductors in size _______ FMC? -
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? - 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 - 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 - 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. - Class
1
Class ____ locations are those that are hazardous because of combustible dust -
Class II
Conductors with _______ Insulation have a greater ampacity when used in a dry
location compared to when used in a wet location - 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? - 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? - Compact vs stranded conductors
332.30 states that type MI cable shall be supported at intervals of at least how many
feet? - Six feet
What table sizes equipment grounding conductors for specific over current devices? -
250.122
Wye is another term for what kind of systems? - Three phase
What is the equation for voltage drop? - VD=2KID/CM
In the voltage drop equation, what is the value CM, and where is it found in the NEC
codebook? - 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. - 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? - GFCI
424.44(E)
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