Practice test

Ohio Journeyman Electrician Practice Test

Free Ohio journeyman electrician practice test with 20 NEC-based questions. Covers grounding, load calculations, and wiring methods. Instant scoring.

These questions are for study practice only and are not official exam questions.

Question 1

1

What is the main purpose of the main bonding jumper at a service panel?

Question 2

2

In a system with multiple grounding electrodes present at a building, what does the NEC require regarding their treatment?

Question 3

3

In a dwelling unit load calculation, how many small-appliance branch circuits does the NEC require at minimum for the kitchen and dining areas?

Question 4

4

What is the standard minimum service size, in amperes, for a one-family dwelling under the NEC when calculated load exceeds 10 kVA or the dwelling has six or more branch circuits?

Question 5

5

A 3-inch rigid metal conduit run contains four current-carrying 4/0 AWG THHN conductors and makes two 90-degree bends between pull points. What NEC limitation governs the number of bends allowed in this run?

Question 6

6

What two exams must an applicant pass to obtain an Ohio OCILB electrical contractor license?

Question 7

7

In a dwelling with a single service, where should the neutral-to-ground bond be made?

Question 8

8

An apprentice applying for an Ohio OCILB electrical contractor license wants to use 40 hours of live OCILB code continuing education as part of documenting trade experience. Is this an approved documentation method?

Question 9

9

A commercial project inspector questions whether a contractor working on the job holds an OCILB electrical contractor license. Which statement about that requirement is accurate under Ohio's licensing structure?

Question 10

10

A branch circuit supplies both a continuous load and a noncontinuous load on the same overcurrent device. How must the device rating be calculated under the NEC?

Question 11

11

For an Ohio OCILB electrical contractor license renewed on a three-year cycle, how many hours of continuing education are required, and what portion must be code-specific?

Question 12

12

A branch circuit conductor run of 14 AWG copper is installed to a fixed lighting outlet not exceeding the branch circuit rating. Which NEC-based reasoning determines its correct overcurrent protection?

Question 13

13

What minimum contractor liability insurance coverage does OCILB require of a licensed Ohio electrical contractor?

Question 14

14

Under the NEC, a grounding electrode conductor whose sole connection is to a single driven ground rod need not be larger than what size copper conductor?

Question 15

15

Which of the following circuits must have arc-fault circuit-interrupter protection in a dwelling unit under current NEC requirements?

Question 16

16

In Ohio, who is permitted to legally perform commercial electrical contracting work under their own business name without being licensed?

Question 17

17

Two ground rods are installed at a residence and are not bonded to a supplemental electrode with a documented resistance of 25 ohms or less. What does the NEC require?

Question 18

18

A continuous load is defined by the NEC as one expected to run at maximum current for how long?

Question 19

19

What is the primary purpose of bonding metal water piping systems in a building?

Question 20

20

Which conductor is never permitted to be used as an equipment grounding conductor in a modern branch circuit?

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