Basic Electricity
Ampere
What is the unit of electrical current
Voltmeter or Mulitimeter
What tool is used to measure Voltage?
3
How many wires are in a 3-way switch circuit (not counting ground)?
Turn off power at the breaker
What should you always do before working on a circuit?
National Electrical Code
What does NEC stand for?
Alternating Current
What does "AC" stand for?
Green or bare copper
What color is typically used for ground wire insulation?
Red and black
What color is typically used for the traveler wires?
Insulated gloves and safety glasses
What PPE should you wear when testing live circuits?
Every 3 years
How often is the NEC updated?
E=IxR
What is Ohm's Law?
Wire stripper
What tool is used to strip insulation from a conductor?
White or gray
What is the standard color for a neutral wire?
White Hardhat
What color hard hat is commonly worn by Supervision?
12–18 inches (typical)
What is the minimum height for a residential receptacle above floor level?
Ω
What is the symbol for resistance?
Non-contact voltage tester
What device detects live current without contact?
Ground Fault Circuit Interrupter
What does GFCI stand for?
To ensure power stays off while working
What is “lockout/tagout” used for?
12 AWG
What size wire is required for a 20-amp circuit?
1,200 Watts
What is 20V x 10A? What is power?
Conduit bender
What tool is used to bend conduit?
GFCI outlet
What type of outlet is required in bathrooms and kitchens?
Circuit breaker
What device protects circuits from overload?
NFPA (National Fire Protection Association)
What organization publishes the NEC?