Journeyman Final Exam
A feeder supplying (2) non-stop-obligation, 208-volt, 3-phase AC cars, one rated 10 hp and
one rated 7½ hp, shall have an ampacity of at LEAST _____.
Sixty eight.75 amperes
sixty two.70 amperes
38.50 amperes
fifty five.00 amperes - ANS-68.Seventy five amperes
Table 430.250 on page 70-333 of the NEC® 2020,
430.24(1) & (2) on web page 70-314 of the NEC® 2020
10 hp - FLC = 30.Eight amps × one hundred twenty five% = 38.5 amperes
7 half of hp - FLC = 24.2 amps × a hundred% = 24.2 amperes
Total = sixty two.7 amperes
A metal electrical junction field with a flat blank plate to be installed will incorporate the
subsequent conductors:
• six (6) length 10 AWG with THWN insulation
• ten (10) length 12 AWG with THWN insulation
• three (three) size 14 AWG system grounding conductors
Which of the following indexed junction containers could have the MINIMUM quantity, in
cubic inches, as required by way of the NEC®?
40 cubic inches
forty three cubic inches
36 cubic inches
forty nine cubic inches - ANS-40 cubic inches
314.16(B)(1) & (five) on page 70-183 of the NEC® 2020,Table 314.16(B) on page 70-184 of
the NEC® 2020
- Size 10 AWG = 2.50 cu. In. X 6 wires= 15.0 cu. In.
- Size 12 AWG = 2.25 cu. In. X 10 wires = 22.Five cu. In.
- Size 14 AWG = 2.00 cu. In. X 1 twine = 2.0 cu. In.
TOTAL = 39.Five cu. In.
As a preferred rule, wherein switches or circuit breakers are used as the principle
disconnecting manner for a constructing provider, they shall be mounted such that the center
of the grip of the operating deal with of the transfer or circuit breaker, when in its highest role,
is NOT extra than ____ above the floor, final grade or working platform.
, 6 toes
6 feet, 7 inches
6 ft, 6 inches
7 toes - ANS-6 ft, 7 inches
240.24(A) on web page 70-103 of the NEC® 2020,
404.Eight(A) on web page 70-264 of the NEC® 2020
Determine the ampacity of a size 350 kcmil THWN aluminum conductor established in a
raceway with 3 (3) other present day-wearing conductors of the equal length where the
expected ambient temperature is 44°C.
210 amperes
151 amperes
164 amperes
146 amperes - ANS-164 amperes
Table 310.16 on page 70-161 of the NEC® 2020,
Table 310.15(B)(1) on page 70-159 of the NEC® 2020,
Table 310.15(C)(1) on page 70-160 of the NEC® 2020
Size 350 kcmil THWN AL ampacity earlier than derating = 250 amperes
250 amperes x .Eighty two (temp. Correction) x .8 (adjustment element) = 164 amperes
Disregarding exceptions, every affected person bed vicinity in standard care (Category 2)
spaces of hospitals will be supplied by using _____.
I. One or extra department circuits from the important department
II. One or more department circuits from the normal device
both I or II
II best
I simplest
each I and II - ANS-both I and II
517.18(A) on page 70-438 of the NEC® 2020
Each living unit of a multifamily living that has an individual front at grade stage, need to be
provided with as a minimum one GFCI included, single-phase, a hundred twenty five-volt,
15- or 20-ampere receptacle outlet accessible from grade degree positioned NOT greater
than _____ above grade level.
6 toes
6 feet, 7 inches
6 half feet
five ft - ANS-6 half feet
210.52(E)(2) on page 70-sixty nine of the NEC® 2020
A feeder supplying (2) non-stop-obligation, 208-volt, 3-phase AC cars, one rated 10 hp and
one rated 7½ hp, shall have an ampacity of at LEAST _____.
Sixty eight.75 amperes
sixty two.70 amperes
38.50 amperes
fifty five.00 amperes - ANS-68.Seventy five amperes
Table 430.250 on page 70-333 of the NEC® 2020,
430.24(1) & (2) on web page 70-314 of the NEC® 2020
10 hp - FLC = 30.Eight amps × one hundred twenty five% = 38.5 amperes
7 half of hp - FLC = 24.2 amps × a hundred% = 24.2 amperes
Total = sixty two.7 amperes
A metal electrical junction field with a flat blank plate to be installed will incorporate the
subsequent conductors:
• six (6) length 10 AWG with THWN insulation
• ten (10) length 12 AWG with THWN insulation
• three (three) size 14 AWG system grounding conductors
Which of the following indexed junction containers could have the MINIMUM quantity, in
cubic inches, as required by way of the NEC®?
40 cubic inches
forty three cubic inches
36 cubic inches
forty nine cubic inches - ANS-40 cubic inches
314.16(B)(1) & (five) on page 70-183 of the NEC® 2020,Table 314.16(B) on page 70-184 of
the NEC® 2020
- Size 10 AWG = 2.50 cu. In. X 6 wires= 15.0 cu. In.
- Size 12 AWG = 2.25 cu. In. X 10 wires = 22.Five cu. In.
- Size 14 AWG = 2.00 cu. In. X 1 twine = 2.0 cu. In.
TOTAL = 39.Five cu. In.
As a preferred rule, wherein switches or circuit breakers are used as the principle
disconnecting manner for a constructing provider, they shall be mounted such that the center
of the grip of the operating deal with of the transfer or circuit breaker, when in its highest role,
is NOT extra than ____ above the floor, final grade or working platform.
, 6 toes
6 feet, 7 inches
6 ft, 6 inches
7 toes - ANS-6 ft, 7 inches
240.24(A) on web page 70-103 of the NEC® 2020,
404.Eight(A) on web page 70-264 of the NEC® 2020
Determine the ampacity of a size 350 kcmil THWN aluminum conductor established in a
raceway with 3 (3) other present day-wearing conductors of the equal length where the
expected ambient temperature is 44°C.
210 amperes
151 amperes
164 amperes
146 amperes - ANS-164 amperes
Table 310.16 on page 70-161 of the NEC® 2020,
Table 310.15(B)(1) on page 70-159 of the NEC® 2020,
Table 310.15(C)(1) on page 70-160 of the NEC® 2020
Size 350 kcmil THWN AL ampacity earlier than derating = 250 amperes
250 amperes x .Eighty two (temp. Correction) x .8 (adjustment element) = 164 amperes
Disregarding exceptions, every affected person bed vicinity in standard care (Category 2)
spaces of hospitals will be supplied by using _____.
I. One or extra department circuits from the important department
II. One or more department circuits from the normal device
both I or II
II best
I simplest
each I and II - ANS-both I and II
517.18(A) on page 70-438 of the NEC® 2020
Each living unit of a multifamily living that has an individual front at grade stage, need to be
provided with as a minimum one GFCI included, single-phase, a hundred twenty five-volt,
15- or 20-ampere receptacle outlet accessible from grade degree positioned NOT greater
than _____ above grade level.
6 toes
6 feet, 7 inches
6 half feet
five ft - ANS-6 half feet
210.52(E)(2) on page 70-sixty nine of the NEC® 2020
