Electrical Safety
This device protects people from shock by shutting off power fast in wet areas.
What is a GFCI?
Used to remove insulation from wire without cutting the copper.
What are wire strippers?
The “push” that moves electricity through a wire.
What is voltage?
This device sets the temperature for heating and cooling.
What is a thermostat?
Heat always moves from ____ to ____.
What is hot to cold?
Before touching wires, you should do this to confirm power is off.
What is test for voltage?
Used to tighten or loosen screws on outlets and switches.
What is a screwdriver?
The flow of electricity, measured in amps.
What is current?
This part moves air through the ducts into rooms.
What is the blower fan?
This is the transfer of heat through direct touch (like a spoon in hot soup).
What is conduction?
This safety step uses a lock and tag so no one turns power back on.
What is Lockout/Tagout?
Used to check if a wire or outlet has power.
What is a voltage tester?
The opposition to current, measured in ohms.
What is resistance?
This catches dust so it doesn’t get blown into the building.
What is an air filter?
This is heat transfer through moving air or water.
What is convection?
These protect your eyes from flying dust and wire clippings.
What are safety glasses?
Used to grip, twist, and bend wires.
What are pliers?
This is the path electricity must have to flow (complete loop).
What is a circuit?
This HVAC part adds heat to the building in winter.
What is a furnace/heater?
The sun warming your skin is an example of this heat transfer.
What is radiation?
This type of ladder is safer around electricity than a metal ladder.
What is a fiberglass ladder?
These twist-on connectors join wires together.
What are wire nuts?
If the circuit is broken, electricity will _____ flowing.
What is stop flowing?
This HVAC part removes heat from inside air to cool the building.
What is an air conditioner (A/C)?
Insulation helps slow down heat _____.
What is loss/transfer?
Touching exposed wires can cause this dangerous event in your body.
What is an electric shock?
This wraps and insulates wire connections.
What is electrical tape?
A material that lets electricity flow easily is called a ______
What is a conductor?
These are the “tunnels” that carry air to different rooms.
What are ducts?
In cooling mode, refrigerant absorbs heat indoors and releases it _____.
What is outside?
This is the safest thing to do if you see sparks or smell burning from an outlet.
What is turn off power and tell an adult/instructor?
This tool measures voltage, current, and resistance.
What is a multimeter?
Rubber is usually a(n) _____ because it resists electricity.
What is an insulator?
The outside unit on many A/C systems contains the _____.
What is the compressor (and condenser fan)?
When warm air rises and cool air sinks, that’s _____.
What is convection?
Water and electricity together increase the risk of this.
What is electrocution/shock?
This material protects wires as they run through walls/ceilings.
What is conduit?
Too many devices on one circuit can cause a(n) _______
What is an overload?
The indoor coil that absorbs heat during cooling is the _____.
What is the evaporator coil?
A fan can make you feel cooler because it helps sweat _____.
What is evaporate?
This is the safe habit of keeping cords and tools out of walkways to prevent falls.
What is good housekeeping?
This is the box in the wall where an outlet or switch is mounted.
What is an electrical box?
A safety device that trips when too much current flows.
What is a circuit breaker?
A clogged filter can make airflow _____.
What is decrease?
The temperature you want the room to reach is called the _____.
What is the setpoint?
If a breaker keeps tripping, you should ____ it back on over and over.
What is not reset (stop and find the problem)?
This tool can cut wire and small screws.
What are wire cutters/diagonal cutters?
The small “label” on devices that tells voltage and amps is called the ______
What is a nameplate/rating label?
This is the vent cover on the wall/ceiling where air comes out.
What is a register/vent?
Sealing doors/windows helps reduce heat loss by stopping air _____.
What is leaks/drafts?