FREE IBEW Aptitude Test Basic Electrical Concepts Questions and Answers

Question 1

Which of the following units is used to measure electrical current?

Accepted Answer

Ampere

Answer

Volt

Answer

Ohm

Answer

Watt

Question 2

What is the primary function of a resistor in an electrical circuit?

Accepted Answer

To oppose the flow of current

Answer

To increase voltage

Answer

To store electrical energy

Answer

To amplify signals

Question 3

An apprentice is wiring a simple circuit. They connect a power source to a light bulb, and the light bulb glows. What fundamental electrical concept describes the 'push' or 'pressure' from the power source that makes the current flow?

Accepted Answer

Voltage

Answer

Resistance

Answer

Current

Answer

Power

Question 4

According to Ohm's Law, if the voltage across a circuit is increased while the resistance remains constant, what happens to the current?

Accepted Answer

It increases

Answer

It decreases

Answer

It remains the same

Answer

It fluctuates unpredictably

Question 5

Which term describes the rate at which electrical energy is consumed or produced in a circuit?

Accepted Answer

Power

Answer

Voltage

Answer

Resistance

Answer

Current

Question 6

What is the material property that measures how strongly a material opposes the flow of electric current?

Accepted Answer

Resistance

Answer

Conductivity

Answer

Capacitance

Answer

Inductance