United States · Licensing exam

Electrician practice test

Here are 20 free questions in the style of the journeyman and master electrician exams. They cover Ohm’s law, power formulas, series and parallel circuits, three-phase power and the basics of the NEC. Every answer comes with a worked explanation, and you can ask the tutor if it still doesn’t click. Anything you miss comes back at the end. Aim for 14 out of 20, which is the 70% pass mark used in Texas, California and Washington.

Question 1 of 20

A 24-ohm resistive load is connected to 120 volts. How much current does it draw?

Sample of the exam: same format, 20 questions.