Deck 5: Components, Symbols, and Circuitry of Air-Conditioning Wiring Diagrams

Question 1

A solenoid is not considered to be a load because it consumes very little electricity.

Answer 1

False

Question 2

Loads are devices such as motors, solenoids, resistance heaters, and other current-consuming devices.

Answer 2

True

Question 3

A(n) ____________________ is the same type of device as a contactor in terms of the ampere rating of the device, but it has a means of overload protection in it.

Answer 3

magnetic starter

Question 4

What is the most important part of a heating, cooling, or refrigeration system? Why?

Question 5

What is the function of a transformer?

Question 6

A(n) ____________________ is a light that is illuminated to denote a certain condition in a system.

Question 7

The ____________________, used to help the installation electrician to wire the unit properly, gives specific information about terminals, wire sizes, color coding, and breaker or fuse sizes.

Question 8

What is the purpose of a signal light?

Question 9

How does a pressure switch's purpose affect its operation?

Question 10

____________________ are loads found in many systems and wiring diagrams that are responsible for taking electric energy and convert it to heat.

Question 11

Why are thermostats said to be mechanically operated?

Question 12

The term normally refers to the position of a set of contacts when the device is de-energized.

Question 13

Thermal overload devices operate by magnetism.

Question 14

Normally open contacts open and normally closed contacts close when the relay or contactor is energized.

Question 15

The ____________________ is a device that creates a magnetic field when energized and causes some action to an electric component such as a relay or valve.

Question 16

A(n) ____________________ is an electrical device that consumes electric energy to rotate a device in an electric system.

Question 17

The ____________________, also referred to as a label or line diagram, is intended to show the actual internal wiring of the unit.

Question 18

Motors are used in the industry to rotate compressors, condenser fan motors, pumps, and other devices that require rotating movement.

Question 19

The schematic diagram is the most useful and easiest to follow of any electric diagram.

Question 20

____________________ are electrical devices that consume electricity to do useful work.