Journeyman Electrician Practice Test

A panelboard has a circuit directory, but it is missing for several circuits and uses vague descriptions that do not indicate what loads are served. This is MOST likely:

• ANot compliant because circuit identification must be clear, evident, and specific as to purpose
• BCompliant because a directory exists
• CCompliant if the panelboard is in a locked room
• DNot compliant only if the panelboard is over 200A

Which of the following locations in a dwelling unit generally requires GFCI protection?

• ALaundry areas
• BBedrooms
• CLiving rooms
• DDining rooms

For an AC service with one set of service-entrance conductors (no parallel sets), which factor determines the size of the grounding electrode conductor per Table 250.66?

• AThe size of the largest ungrounded service-entrance conductor
• BThe rating of the branch circuit breaker
• CThe size of the equipment grounding conductor
• DThe number of grounding electrodes installed

In a 120/240-volt, single-phase, 3-wire system, what current does the neutral conductor carry under normal operation?

• AThe unbalanced current between the two ungrounded conductors, which is zero when the load is balanced
• BOnly ground-fault current
• CNo current; it is the same as the grounding electrode conductor
• DThe sum of the currents on both ungrounded conductors

Which NEC subsection addresses entrance to and egress from the required working space for electrical equipment?

• A110.26(A)(1)
• B110.26(A)(2)
• C110.26(A)(4)
• D110.26(C)

In an RV park load calculation (551.73), what load is used for each dedicated tent site with only 20-ampere supply facilities?

• A600 VA
• B2,400 VA
• C1,500 VA
• D180 VA

A conduit run has two 45° bends and one 90° bend between pull boxes. What is the total degrees of bend?

• A180°
• B135°
• C225°
• D360°

Which metric prefix means one thousandth (0.001)?

• AMilli (m)
• BMicro (μ)
• CKilo (k)
• DMega (M)

During general-industry machinery servicing under OSHA 1910.147, the primary purpose of lockout/tagout is to prevent:

• AUnexpected energization or startup of equipment during servicing
• BVoltage drop on long circuits
• CNuisance tripping of breakers
• DOverheating due to harmonics

A 45 kVA 240V single-phase transformer has a secondary current of approximately:

• A188 A
• B45 A
• C94 A
• D125 A

A meter disconnect installed under 230.82(3) serves as the emergency disconnect for a one-family dwelling. How must it be marked?

• AEMERGENCY DISCONNECT, SERVICE DISCONNECT
• BMETER ONLY
• CSERVICE EQUIPMENT
• DEMERGENCY DISCONNECT, METER DISCONNECT, NOT SERVICE EQUIPMENT

Which NEC article contains the primary requirements for electric vehicle power transfer systems (EV charging equipment)?

• AArticle 625
• BArticle 680
• CArticle 692
• DArticle 700

For sizing branch-circuit conductors, fixed electric space-heating equipment (and any associated motors) is treated as:

• AA continuous load, with conductors sized at 125% of the load
• BA noncontinuous load, with conductors at 100% of the load
• CA motor load, with conductors at 175% of the load
• DAn intermittent load, with conductors at 80% of the load

Which cable type is commonly used for underground service laterals?

• AType USE (Underground Service-Entrance)
• BType SE
• CType NM
• DType AC

The PRIMARY purpose of an equipment grounding conductor (EGC) is to:

• AProvide an effective fault current path to facilitate operation of the overcurrent device
• BCarry normal return (neutral) current
• CConnect the electrical system to earth for lightning protection only
• DIncrease the ampacity of the circuit conductors