Electrician Journeyman Exam Practice Test

Free 5-question sample test with instant feedback. See how ready you are.

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Sample Questions

Question 1

What is the formula for calculating current (I) when voltage (E) and resistance (R) are known?

Answer: I = E ÷ R. Current equals voltage divided by resistance.

Question 2

Using Ohm's Law, what is the voltage across a 20-ohm resistor carrying 3 amperes?

Answer: E = I × R = 3 × 20 = 60 volts.

Question 3

What is the formula for electrical power (P) when voltage (E) and current (I) are known?

Answer: P = E × I. Power equals voltage multiplied by current.

Question 4

How many watts does a 120-volt circuit consume when drawing 15 amperes?

Answer: P = E × I = 120 × 15 = 1,800 watts.

Question 5

What is the formula for power (P) when only current (I) and resistance (R) are known?

Answer: P = I² × R. Power equals current squared multiplied by resistance.