Types
AC/DC are examples of.....
What are types of Voltage?
crucial component that steps down high voltage (like 120V/240V) to low voltage (typically 24V) to safely power the system's controls
What is a step-down transformer?
The unit of measure for resistance
What is an ohm?
I was as a German mathematician and physicist.
Who is Georg Ohm?
a closed loop that allows electricity to flow from a power source (like a battery) through a conductor (wire) to a load (such as a light bulb) and back to the source.
What is a simple circuit?
Another name for voltage.
What is EMF?(Electromotive force)
a heavy-duty electrical switch in your air conditioner or heat pump that acts as a remote-controlled bridge, using low-voltage signals from the thermostat to turn the high-voltage power on or off to the compressor and fan motor, managing the entire cooling cycle by allowing or blocking electricity flow.
What is a HVAC contactor?
The unit of measure for voltage
What is voltage?
I am credited with inventing the first modern electrical air conditioning system in 1902
Who is Willis Haviland Carrier?
an electrical circuit with multiple, independent branches, allowing current to divide and flow through several paths simultaneously.
What is a parallel circuit?
Identifying the path the current takes through a circuit.
What is a schematic?
An electrically controlled switch that uses a low-voltage signal (often from a thermostat) to control high-voltage components like fans and compressors, acting as a gatekeeper to turn them on or off, preventing wear on the thermostat and enabling complex system operation
What is a relay?
The unit of measure for current
What is an ampere?
I am credited as the inventor of the electric battery and the discoverer of methane.
Who is Alesandro Volta?
connect components in a single path, meaning the same current flows through each, and if one fails, the entire circuit stops.
What is a series circuit?
Any material that allows a current to flow through it.
What is a conductor?
a cylindrical, battery-like component that stores electrical energy to provide a high-voltage, initial boost to start motors (compressor, blower, fan) and keeps them running efficiently.
What is a HVAC Capacitor?
I am the abbreviation for a safety measure
What is lock out/tag out?
American inventor and businessman. He developed many devices in fields such as electric power generation, sound recording, and motion pictures.
Who is Thomas Edison?
allows you to control a single light fixture (or outlet) from two different locations,
What is a 3way circuit?
An electric device that requires electric energy to operate, using the power from the source to perform work.
What is a load?
Is the ability of an object to store electric charge. It is measured by the change in charge in response to a difference in electric potential, expressed as the ratio of those quantities.
What is capacitance?
A measure of a substance’s ability to block electric flow.
What is dielectric strength?
A Scottish engineer that used (P=VxI)
Who is James Watt?
an electrical contact, switch, or relay that does not allow current to flow in its resting, unpowered state.
What is normally open?
A unit used to measure electrical power.
What is a Watt?
An organization that develops standards for electrical component specifications.
What is NEMA(National Electric Manufactures Association)
I am credited with inventing the first central heating system using natural gas, receiving a patent for her design on December 23, 1919
Who is Alice H. Parker?
a switch or relay contact that allows electricity to flow (completes the circuit) when it is in its resting, unpowered, or untriggered state
What is normally closed?
defines the relationship between power, voltage and current and states that the power in a circuit is a product of the voltage and the current.
What is Watts Law?
In basic terms, a sensing device that reacts to temperature change. More broadly, a temperature control that starts and stops an HVAC system when preset temperature conditions are reached
What is a thermostat?
An inverse relationship between variables that states as one variable changes, the other changes in an opposing manner.
What is inversely proportional?
A device that can change, or control, a connection in an electrical circuit.
What is a switch?