Basic Wiring and Safety Quiz
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5 Questions
Question 1 of 5
What is the primary function of a ground wire in an electrical circuit?
Ground wires provide a safe path for fault current, tripping circuit breakers & protecting against shock.
Question 2 of 5
Which of the following wire colors typically represents the 'hot' or 'live' wire in a standard US residential electrical circuit?
Black is standard for hot wires in US wiring, while white is neutral and green/bare copper is ground.
Question 3 of 5
What does GFCI stand for, and what is its main purpose?
GFCI's quickly detect and interrupt ground faults, minimizing the risk of electric shock.
Question 4 of 5
Before working on any electrical circuit, what is the MOST important safety precaution to take?
De-energizing the circuit is the primary safety measure to prevent electrocution.
Question 5 of 5
What is the purpose of a fuse or circuit breaker in an electrical circuit?
Fuses/breakers protect circuits by interrupting the current flow when it exceeds a safe limit.
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