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New Hampshire Journeyman Electrician Exam | Latest
Verified Questions and Detailed Answers
OVERVIEW DESCRIPTION:
This document provides two comprehensive practice examinations for the New Hampshire
Journeyman Electrician Exam, each containing 100 multiple-choice questions. The
questions are designed to mirror the actual exam's format and content, covering the full
scope of the 2020 National Electrical Code (NEC) as well as practical applications. Key
topics addressed include grounding and bonding, overcurrent protection, conductor sizing
and ampacity, motor controls, raceway and box fill calculations, load calculations for
residential and commercial settings, and requirements for special occupancies. Each
question is followed by the correct answer and a concise expert rationale, explaining the
specific NEC section or calculation principle that justifies the answer, making this an
effective study tool for exam preparation.
SET 1: New Hampshire Journeyman Electrician Exam
QUESTION 1
What is the minimum size copper equipment grounding conductor required for a 600A
circuit breaker protecting a feeder consisting of parallel 400 kcmil copper conductors?
a. 1/0 AWG copper
b. 2/0 AWG copper
c. 3/0 AWG copper
d. 4/0 AWG copper
CORRECT ANSWER: d. 4/0 AWG copper
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EXPERT RATIONALE: Table 250.122 specifies the minimum size equipment grounding
conductor based on the overcurrent device rating. For a 600A device, Table 250.122
requires a 4/0 AWG copper conductor.
QUESTION 2
Where a 30-ampere branch circuit is installed in a commercial building, what is the
maximum standard rating of a fuse permitted to protect 10 AWG copper conductors
after applying all adjustment factors?
a. 20 amperes
b. 25 amperes
c. 30 amperes
d. 35 amperes
CORRECT ANSWER: c. 30 amperes
EXPERT RATIONALE: Section 240.4(D) limits the overcurrent protection for 10 AWG
copper conductors to 30 amperes, regardless of any permitted "next-size-up" rule for
standard amp ratings.
QUESTION 3
For a dwelling unit, what is the minimum calculated load for the laundry branch circuit
required by the NEC?
a. 1,000 VA
b. 1,200 VA
c. 1,500 VA
d. 1,800 VA
CORRECT ANSWER: c. 1,500 VA
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EXPERT RATIONALE: Section 220.82(B) specifies that for the optional method of load
calculation, the 20-ampere laundry branch circuit is calculated at 1,500 VA.
QUESTION 4
What is the minimum cubic inch capacity required for a box that contains three 12 AWG
conductors spliced, five 12 AWG conductors terminating to devices, and two 12 AWG
equipment grounding conductors?
a. 18 cubic inches
b. 20.25 cubic inches
c. 22.5 cubic inches
d. 24.75 cubic inches
CORRECT ANSWER: d. 24.75 cubic inches
EXPERT RATIONALE: Per 314.16(B), each 12 AWG requires 2.25 cu.in . Conductors: 3
splice + 5 device = 8 conductors x 2.25 = 18. EGCs count once each: 2 x 2.25 = 4.5. Total
= 22.5 cu.in .
QUESTION 5
A 7.5 hp, 230V, single-phase motor has a nameplate full-load current of 38 amperes.
What is the minimum size branch-circuit conductors required for this motor?
a. 6 AWG
b. 4 AWG
c. 3 AWG
d. 2 AWG
CORRECT ANSWER: c. 3 AWG
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EXPERT RATIONALE: Per 430.6(A)(1), conductors are sized per motor FLC from Tables.
Table 430.248 lists 7.5 hp, 230V, single-phase at 40A. Per 430.22, conductors must be
125% of 40A = 50A. 3 AWG at 75°C is rated 50A.
QUESTION 6
In a commercial building, a 120-volt, 15-ampere receptacle is installed under a sink for a
disposal. Is GFCI protection required?
a. Yes, because it is within 6 feet of the sink
b. No, because disposals are exempt
c. Yes, because it is in a commercial kitchen
d. No, because it is a dedicated circuit
CORRECT ANSWER: c. Yes, because it is in a commercial kitchen
EXPERT RATIONALE: Section 210.8(B)(2) requires GFCI protection for all 125-volt, 15-
and 20-ampere receptacles installed in commercial kitchens, regardless of proximity to
the sink.
QUESTION 7
If eight service disconnects are installed in a single enclosure for a 1600-ampere service,
what is a requirement per the 2020 NEC?
a. The installation is permitted without barriers
b. The installation is not permitted
c. Barriers must separate each disconnect
d. Only six disconnects can be in one enclosure
CORRECT ANSWER: b. The installation is not permitted
EXPERT RATIONALE: Section 230.71 limits service disconnects to a maximum of six.
Installing eight disconnects in one enclosure violates this requirement.
New Hampshire Journeyman Electrician Exam | Latest
Verified Questions and Detailed Answers
OVERVIEW DESCRIPTION:
This document provides two comprehensive practice examinations for the New Hampshire
Journeyman Electrician Exam, each containing 100 multiple-choice questions. The
questions are designed to mirror the actual exam's format and content, covering the full
scope of the 2020 National Electrical Code (NEC) as well as practical applications. Key
topics addressed include grounding and bonding, overcurrent protection, conductor sizing
and ampacity, motor controls, raceway and box fill calculations, load calculations for
residential and commercial settings, and requirements for special occupancies. Each
question is followed by the correct answer and a concise expert rationale, explaining the
specific NEC section or calculation principle that justifies the answer, making this an
effective study tool for exam preparation.
SET 1: New Hampshire Journeyman Electrician Exam
QUESTION 1
What is the minimum size copper equipment grounding conductor required for a 600A
circuit breaker protecting a feeder consisting of parallel 400 kcmil copper conductors?
a. 1/0 AWG copper
b. 2/0 AWG copper
c. 3/0 AWG copper
d. 4/0 AWG copper
CORRECT ANSWER: d. 4/0 AWG copper
,2|Page
EXPERT RATIONALE: Table 250.122 specifies the minimum size equipment grounding
conductor based on the overcurrent device rating. For a 600A device, Table 250.122
requires a 4/0 AWG copper conductor.
QUESTION 2
Where a 30-ampere branch circuit is installed in a commercial building, what is the
maximum standard rating of a fuse permitted to protect 10 AWG copper conductors
after applying all adjustment factors?
a. 20 amperes
b. 25 amperes
c. 30 amperes
d. 35 amperes
CORRECT ANSWER: c. 30 amperes
EXPERT RATIONALE: Section 240.4(D) limits the overcurrent protection for 10 AWG
copper conductors to 30 amperes, regardless of any permitted "next-size-up" rule for
standard amp ratings.
QUESTION 3
For a dwelling unit, what is the minimum calculated load for the laundry branch circuit
required by the NEC?
a. 1,000 VA
b. 1,200 VA
c. 1,500 VA
d. 1,800 VA
CORRECT ANSWER: c. 1,500 VA
,3|Page
EXPERT RATIONALE: Section 220.82(B) specifies that for the optional method of load
calculation, the 20-ampere laundry branch circuit is calculated at 1,500 VA.
QUESTION 4
What is the minimum cubic inch capacity required for a box that contains three 12 AWG
conductors spliced, five 12 AWG conductors terminating to devices, and two 12 AWG
equipment grounding conductors?
a. 18 cubic inches
b. 20.25 cubic inches
c. 22.5 cubic inches
d. 24.75 cubic inches
CORRECT ANSWER: d. 24.75 cubic inches
EXPERT RATIONALE: Per 314.16(B), each 12 AWG requires 2.25 cu.in . Conductors: 3
splice + 5 device = 8 conductors x 2.25 = 18. EGCs count once each: 2 x 2.25 = 4.5. Total
= 22.5 cu.in .
QUESTION 5
A 7.5 hp, 230V, single-phase motor has a nameplate full-load current of 38 amperes.
What is the minimum size branch-circuit conductors required for this motor?
a. 6 AWG
b. 4 AWG
c. 3 AWG
d. 2 AWG
CORRECT ANSWER: c. 3 AWG
, 4|Page
EXPERT RATIONALE: Per 430.6(A)(1), conductors are sized per motor FLC from Tables.
Table 430.248 lists 7.5 hp, 230V, single-phase at 40A. Per 430.22, conductors must be
125% of 40A = 50A. 3 AWG at 75°C is rated 50A.
QUESTION 6
In a commercial building, a 120-volt, 15-ampere receptacle is installed under a sink for a
disposal. Is GFCI protection required?
a. Yes, because it is within 6 feet of the sink
b. No, because disposals are exempt
c. Yes, because it is in a commercial kitchen
d. No, because it is a dedicated circuit
CORRECT ANSWER: c. Yes, because it is in a commercial kitchen
EXPERT RATIONALE: Section 210.8(B)(2) requires GFCI protection for all 125-volt, 15-
and 20-ampere receptacles installed in commercial kitchens, regardless of proximity to
the sink.
QUESTION 7
If eight service disconnects are installed in a single enclosure for a 1600-ampere service,
what is a requirement per the 2020 NEC?
a. The installation is permitted without barriers
b. The installation is not permitted
c. Barriers must separate each disconnect
d. Only six disconnects can be in one enclosure
CORRECT ANSWER: b. The installation is not permitted
EXPERT RATIONALE: Section 230.71 limits service disconnects to a maximum of six.
Installing eight disconnects in one enclosure violates this requirement.
