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Learn by Practicing, Not Just by Reading

A tool designed to help you become a better electrician by generating questions on common topics in the electrical field.

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Different answers, Every time.

All of our questions feature unique parameters that encourage you to truly understand and master the subject, rather than simply memorizing it.

NEC Lookup Questions

Familiarize yourself with the structure of the NEC by answering 'lookup questions.'

Select the chapter or article you want the questions to be generated from.

According to the NEC, equipment that has been listed by a recognized qualified electrical testing laboratory need not be inspected at the time of installation unless _______.

  • (A) The equipment is newly manufactured
  • (B) It is used in a residential setting
  • (C) The equipment has been previously installed elsewhere
  • (D) Alterations or damage are detected

What is the voltage drop for a 3-phase system operating at 480 volts, with a load of 100 amps, using copper wire of #1 gauge over a run of 115 feet?

Answer: 3.07 volts

Voltage Drop Questions

Determine the maximum voltage drop in a circuit, identify the appropriate wire gauge, and more.

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