Wiring a Wiring a Switch
What color wire goes on the brass screw of a switch?
Hot (black).
What color wire attaches to the silver screw?
Neutral (white).
Which wire carries power from the panel to the device?
Hot wire.
What protects your eyes during cutting or stripping wire?
Safety glasses.
Solar panels produce what type of power?
DC.
Which switch controls one light from one location?
Single-pole switch.
Which wire connects to the green screw?
Ground (bare or green).
Which wire completes the circuit back to the panel?
: Neutral wire.
What must you do before touching any electrical circuit?
Turn off the breaker / lockout-tagout.
In the U.S., panels should face what direction?
South.
On a 3-way switch, what color is the “common” screw?
Black screw.
Which slot on an outlet is the neutral?
The wider slot.
What is the purpose of a ground wire?
Safety path for fault current.
What gloves help protect from electrical shock?
Insulated gloves.
What device converts DC power into AC power?
Inverter.
What two wires does a basic switch need to operate?
Line (hot in) and load (hot out).
A GFCI protects against what type of hazard?
Shock from ground faults.
Which color is never neutral?
Black.
What ladder safety rule prevents falls?
Maintain 3 points of contact.
Why is DC more dangerous to work with than AC in solar systems?
DC can maintain an arc (continuous current).
Why is wiring the neutral to a switch unsafe?
The light stays energized even when “off.”
What is the problem with “back-stabbed” wiring?
It is less secure and can loosen or overheat.
What is reverse polarity?
Hot and neutral are swapped — unsafe.
What tool verifies that a circuit is actually off?
Voltage tester or multimeter.
What safety gear is required for roof solar installation?
Fall protection (harness, anchor, lanyard).