Question 1

Schematics are generally harder to read and understand than wiring diagrams.

Accepted Answer

Schematics are designed to illustrate the function and flow of an electrical system, focusing on the connections and relationships between components, which can be abstract but systematic. Wiring diagrams, on the other hand, show the physical connections and layout of an electrical system, which can be more complex and detailed, making them potentially harder to read for those not familiar with the specific layout or physical configuration of the system.

Question 2

A normally closed push button ____.&#10;A) is generally used to represent a start button&#10;B) has only one pole&#10;C) is generally used to represent a stop button&#10;D) is referred to as common

Accepted Answer

A normally closed push button is generally used to represent a stop button as it is in the inactive state when the system is running and gets activated when the system needs to be stopped.

Question 3

A normally closed pushbutton is drawn with the movable contact above the stationary contact.

Accepted Answer

A normally closed pushbutton is typically drawn with the movable contact below the stationary contact.

Question 4

It is generally necessary for the service person to determine the meaning of the lines on a particular schematic.

Accepted Answer

Yes, it is necessary for the service person to determine the meaning and purpose of the lines and symbols on a schematic diagram in order to understand the circuitry and troubleshoot any issues.

Question 5

Schematic diagrams ____.&#10;A) are used to represent how the circuit generally appears&#10;B) show components mounted in their general location with connecting wires&#10;C) show components in their electrical sequence without regard for physical location&#10;D) show all hypothetically possible logical relations

Accepted Answer

Schematic diagrams show components in their electrical sequence without regard for physical location. This means that the diagram may not accurately represent how the circuit actually appears and instead focuses on the connections between components. Choices A and B are not fully accurate as schematic diagrams may not represent the physical location or appearance of components. Choice D is not accurate as schematic diagrams only show logical relations that apply to the specific circuit being represented.

Question 6

In a ____, a simple switch is used to control the power applied to a small motor.&#10;A) one-wire control circuit&#10;B) two-wire control circuit&#10;C) three-wire control circuit&#10;D) tone-control circuit

Accepted Answer

A two-wire control circuit is the simplest and most basic type of control circuit used to control a motor. It involves the use of a simple switch to turn the power on and off to the motor.

Question 7

Once a few basic principles are understood, reading schematics and wiring diagrams will become as easy as reading a newspaper.

Accepted Answer

Once the principles of schematics and wiring diagrams are understood, it becomes easy to read them, just like reading a newspaper.

Question 8

____ indicates that the switch contains only one movable contact.&#10;A) Make-before-break&#10;B) Single throw&#10;C) Break-before-make&#10;D) Single pole

Accepted Answer

A "single pole" switch is a switch that contains only one movable contact.

Question 9

Load contacts are large and designed to carry the current needed to operate the load.

Accepted Answer

Load contacts are designed to carry the current needed to operate the load, which means they are generally larger and more robust than control contacts.

Question 10

Some diagrams will use dashed lines to ____.&#10;A) indicate factory-installed wiring&#10;B) represent edges hidden in views of a complex object&#10;C) indicate that an object within the drawing space is selected&#10;D) illustrate field-connected devices

Accepted Answer

The answer of Some diagrams will use dashed lines to...

Deck 9: Schematic and Wiring Diagrams