Question 1

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

Accepted Answer

Motors are commonly used in various industries to provide the necessary rotational force for equipment like compressors, fans, and pumps, which require rotational movement to function effectively.

Question 2

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

Accepted Answer

The schematic diagram uses standardized symbols to represent components and their connections, making it easy to understand and follow. It is commonly used in electrical engineering and is the preferred choice for documenting electrical systems.

Question 3

Thermal overload devices operate by magnetism.

Accepted Answer

Thermal overload devices operate based on the principle of thermal expansion due to heat generated by excessive current flow, not magnetism.

Question 4

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

Accepted Answer

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

Question 5

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.

Accepted Answer

The answer of The ____________________, used to help the installation...

Question 6

What is the function of a transformer?

Accepted Answer

The answer of What is the function of a transformer?...

Question 7

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.

Accepted Answer

The answer of A(n) ____________________ is the same type of...

Question 8

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

Accepted Answer

The answer of How does a pressure switch's purpose affect...

Question 9

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

Accepted Answer

The answer of ____________________ are electrical devices that consume electricity...

Question 10

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

Accepted Answer

A solenoid is not considered to be a load because it converts electrical energy into magnetic energy, but it still consumes electricity.

Question 11

Why are thermostats said to be mechanically operated?

Accepted Answer

The answer of Why are thermostats said to be mechanically...

Question 12

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

Accepted Answer

Loads are devices that require electrical power to operate, and examples include motors, solenoids, and resistance heaters. Therefore, it is true that loads are devices such as motors, solenoids, resistance heaters, and other current-consuming devices.

Question 13

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

Accepted Answer

The term "normally" implies the default or resting position of a device when there is no power or energy flowing through it. For example, a normally closed contact would be closed when the device is not powered, while a normally open contact would be open in the same state.

Question 14

What is the purpose of a signal light?

Accepted Answer

The answer of What is the purpose of a signal...

Question 15

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

Accepted Answer

The answer of A(n) ____________________ is an electrical device that...

Question 16

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

Accepted Answer

The answer of ____________________ are loads found in many systems...

Question 17

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

Accepted Answer

The answer of A(n) ____________________ is a light that is...

Question 18

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

Accepted Answer

The answer of The ____________________, also referred to as a...

Question 19

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

Accepted Answer

The answer of What is the most important part of...

Question 20

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.

Accepted Answer

The answer of The ____________________ is a device that creates...

Quiz 5: Components Symbols and Circuitry of Air 252dconditioning Wiring Diagrams