Drawing And Diagram Conversion 030204d

Question 1

What are wiring diagrams used for?

Answer 1

Wiring diagrams are used to show the detailed wiring of electrical devices, equipment, and systems.

Question 2

Why are wiring diagrams considered the most realistic?

Answer 2

Wiring diagrams are the most realistic of the diagrams because they show the devices, conductors, and connections in the same relative positions in which they are found in the completed installation.

Question 3

What do block diagrams show?

Answer 3

Block diagrams show how components of an electrical system relate to each other.

Question 4

What information do block diagrams provide?

Answer 4

They provide general information about the system and the relative location of each component without going into great detail.

Question 5

What shapes can blocks in a block diagram take?

Answer 5

Blocks can be squares, rectangles, circles, or other shapes.

Question 6

How are blocks in a block diagram interconnected?

Answer 6

Blocks are interconnected by single lines.

Question 7

What does each block in a block diagram represent?

Answer 7

Each block is labelled to represent an individual device, machine, or a larger unit, such as a process or an entire building.

Question 8

Why might someone use a block diagram over a wiring diagram?

Answer 8

A block diagram is easier to follow than the wiring diagram if your objective is to get a general idea of how the system is to be installed.

Question 9

What is an interconnection diagram?

Answer 9

An interconnection diagram shows how a particular component within a system is connected to other components.

Question 10

What is the most common type of interconnection diagram?

Answer 10

The most common interconnection diagram is the termination schedule.

Question 11

What does a termination schedule identify?

Answer 11

A termination schedule identifies and labels a cable or conductor and its termination points.

Question 12

What is a pin-out diagram?

Answer 12

A type of interconnection diagram that shows which conductor connects to each pin of a multi-pin plug or receptacle.

Question 13

How can pin-out diagrams be presented?

Answer 13

They can be in chart form if the pins are numbered, or in pictorial form showing the actual layout of the pins.

Question 14

Why is it important to recognize the view shown on pin-out diagrams?

Answer 14

To ensure the correct connection of the conductors to the assigned pins.

Question 15

From which views can pin-out diagrams be observed?

Answer 15

From the top (where the wire terminals are located) or from the bottom (the end that connects to the other receptacle).

Question 16

What do schematic diagrams illustrate?

Answer 16

Schematic diagrams illustrate the sequence of operation of an electrical circuit or system in the simplest way possible.

Question 17

Why is knowing the sequence of operation important?

Answer 17

Knowing the sequence of operation of an electrical system can help you analyze or troubleshoot the system.

Question 18

How do schematic diagrams represent electrical circuits?

Answer 18

Schematic diagrams show the electrical circuit or system without regard to the physical location or actual appearance of the components.

Question 19

What are schematic diagrams sometimes referred to as?

Answer 19

Schematic diagrams are sometimes referred to as ladder diagrams because all the information is laid out on horizontal lines between two vertical lines.

Question 20

How are electrical devices in schematic diagrams represented?

Answer 20

The electrical devices are represented by symbols and identified with labels such as letters, names, or numbers.

Question 21

How are contacts identified in schematic diagrams?

Answer 21

Contacts are identified with the same label as the control coil that operates them.

Question 22

What is the normal position of contacts and switches?

Answer 22

Contacts and switches are shown in their normal position (normally open [NO] or normally closed [NC]) when there is no power to the circuit.

Question 23

What indicates a connection in schematic diagrams?

Answer 23

Connections are shown with a dot or node at the point of connection.

Question 24

How is wiring illustrated in schematic diagrams?

Answer 24

All wiring is illustrated with vertical or horizontal lines.

Question 25

What is the guideline regarding crossing lines in schematic diagrams?

Answer 25

If possible, lines do not cross one another.

Question 26

Where are control devices located in schematic diagrams?

Answer 26

The control devices are located on the left side of the schematic drawing.

Question 27

Where are load devices located in schematic diagrams?

Answer 27

The load devices are located on the right side of the schematic drawing.

Question 28

What does the acronym PLANS stand for?

Answer 28

P- Polarity, L-Label, A - Alignment, N - Nodes, S- Symbols.