EstatePass

On a single-family remodel during plan review, a single-phase resistive load draws 10 amperes at 240 volts; what is its power?

NASCLA Electrical exam practice question · Electrical Theory & Principles

On a single-family remodel during plan review, a single-phase resistive load draws 10 amperes at 240 volts; what is its power?

  • A24 watts
  • B240 watts
  • C24,000 watts
  • 2,400 watts

Why D is correct

For a resistive single-phase load, P = V × I = 240 × 10 = 2,400 watts. The best answer is therefore “2,400 watts.” The other choices either address a different system, rely on an unsafe shortcut, or make a conclusion not supported by the stated facts.

Practice 11 more Electrical Theory & Principles questions

Timed mock exams, a wrong book and flashcards — one subscription covers every contractor exam line.

Start studying free