Tools of the Trade
Circuits
Symbols
Multimeters
Terms
100

 A tool used for a multitude of purposes when working with electrical conductors. 

 Multipurpose Tool

100

Voltage

Current 

Resistance

What are the three components of electricity?

100

A simple on or off switch is called what in a schematic diagram?

What is a single pole single throw switch?

100

Multimeter setting used to check resistance (no beep). 

What is the Ohms setting?

100

A wiring diagram. 

What is a schematic?

200

A tool used to remove the insulation or sheathing from conductors. 

What are wirestrippers?

200

Power Source

Load 

Conductors

What are the three components of a simple circuit?

200

This switch is primarily used for isolation, voltage switching, and system overrides. It allows low-voltage controls to safely manage high-voltage equipment, or forces a system to switch between completely different operational modes. (Train tracks)

What is a double-pole double-throw switch?

200

Multimeter setting used to check for electricity in a system. 

What is NCV (Non-Contact Voltage)?

200

The electrical pressure or potential difference that pushes electrons through a circuit. 

What is voltage?

300

A tool that is used to access frequently hard-to-reach places. 

What are needle nose pliers?

300

Batteries and a power grid are examples of what?

What are power sources?

300

This type of switch is usually located in the condensing unit. It will open and close when there is a rise or decrease in pressure. 

What is a pressure switch?

300

Multimeter setting used to check amperage.

What is AAC? (Amperes alternating current)

300

Contains only one control entity and one work entity. 

What is a simple circuit?

400

A tool used to make connections between conductors and wire connectors. 

What are crimpers?

400

How we control circuits....

What are switches?

400

This switch is an electronic control device that measures relative humidity and turns a whole-house humidifier or dehumidifier on or off to maintain a target moisture level. 

What is a humidistat?

400

Multimeter setting used to check voltage in an AC circuit. 

What is VAC? (Volts Alternating Current)

400

Provides zero or low-resistance connections forming paths for electrons to flow. 

What are conductors?

500

Specialized diagnostic and service tools used by HVAC and automotive technicians to measure, monitor, and control the pressure of refrigerant gas inside an air conditioning or refrigeration system.

Manifold Gauge Set

500

This is caused by direct contact between opposite potentials.  

What is a direct or dead short?

500

This is an electrical switch with a built-in timing circuit that waits for a pre-set period before opening or closing its contacts to control a load.


What is a time delay relay?

500

Multimeter setting used to check voltage in a DC circuit.

What is VDC? (Volts Direct Current)

500

Current loops broken by physical gaps. Can be intentional or unintentional. 

What are open circuits?

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