hvac

Front

What is an open switch?

Back

An open switch is a switch that is not allowing electricity to flow through it.

Front

What is a closed switch?

Back

A closed switch is a switch that allows electricity to flow through it.

Front

What color is the hot wire in HVAC systems?

Back

The hot wire is typically black.

Front

What is a fuse?

Back

A fuse is a safety device that protects electrical circuits by breaking the circuit if the current is too high.

Front

What color is the common wire on a thermostat?

Back

The common wire is usually blue.

Front

What does a GFCI do?

Back

A GFCI (Ground Fault Circuit Interrupter) trips and cuts off electricity when it detects water, preventing electric shock.

Front

What is a diode?

Back

A diode is a component that allows electricity to flow in one direction only.

Front

What is the purpose of a thermostat?

Back

A thermostat regulates the temperature by controlling the heating and cooling systems.

Front

What does HVAC stand for?

Back

HVAC stands for Heating, Ventilation, and Air Conditioning.

Front

What is the function of a circuit breaker?

Back

A circuit breaker protects electrical circuits by automatically shutting off the power when there is an overload.