Basic Switch Installation Quiz
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5 Questions
Question 1 of 5
Which wire color is typically used for the hot (live) wire in residential electrical wiring in North America?
Black wires are generally used for hot wires in North American residential wiring.
Question 2 of 5
What is the primary function of a switch in an electrical circuit?
A switch's core purpose is to interrupt or complete the circuit, turning the connected device on or off.
Question 3 of 5
When installing a switch, which wire is connected to the brass-colored screw terminals?
Brass screws typically indicate the hot wire connection, used for switching power.
Question 4 of 5
What is the purpose of the ground wire in a switch installation?
The ground wire provides a safety path for fault current to protect against electrical shock.
Question 5 of 5
Before working on any electrical circuit, what is the most important safety precaution to take?
Turning off the circuit breaker ensures the circuit is de-energized, preventing electrical shock.
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