1st year apprentice knowledge, wires and basic terminology Quiz
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15 Questions
Question 1 of 15
What unit is used to measure electrical current?
Current is the flow of charge, measured in Amperes.
Question 2 of 15
What is the function of a fuse in an electrical circuit?
Fuses break the circuit when current exceeds a safe level.
Question 3 of 15
What does AWG stand for?
AWG is the standard wire size measurement system.
Question 4 of 15
Which wire color is typically used for the ground wire in a US electrical circuit?
Green or bare copper indicates the ground connection.
Question 5 of 15
What is the unit of measurement for electrical resistance?
Resistance opposes the flow of current, measured in Ohms.
Question 6 of 15
Which of the following is a good conductor of electricity?
Copper has low resistance and allows current to flow easily.
Question 7 of 15
What is voltage?
Voltage is the potential difference causing current flow.
Question 8 of 15
What is the purpose of a circuit breaker?
Circuit breakers protect circuits from overcurrent.
Question 9 of 15
What is the term for a closed path through which electric current flows?
A circuit provides a complete path for current flow.
Question 10 of 15
Which wire size is larger, AWG 12 or AWG 14?
Smaller AWG numbers indicate larger wire diameters.
Question 11 of 15
What does a multimeter measure?
A multimeter is a versatile testing tool.
Question 12 of 15
What is the difference between AC and DC current?
DC flows in one direction; AC periodically reverses direction.
Question 13 of 15
Which of these is NOT an insulator?
Copper is a good conductor, not an insulator.
Question 14 of 15
What is the unit of measurement for electrical power?
Power is the rate at which energy is used, measured in Watts.
Question 15 of 15
What is the primary function of a transformer?
Transformers change voltage levels.
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