5 features of a schematic
- Line drawing
- Technical or scientific purpose
- Shows how a system works
- Symbols used instead of pictures
- Symbols connected to form system by lines
4 kinds of pneumatic and hydraulic diagrams
- Cut away
- Pictorial
- Schematic
- Combination
2 kinds of piping diagrams
- Single line
- Double line
What is an angle view showing 3 dimensions?
Isometric projection
What is a list of special information about lines and symbols on a blueprint?
Legend
What makes it possible to condense a great deal of information into one drawing?
Electrical diagrams
3 kinds of electrical diagrams
- One-line
- Schematic
- Wiring
What illustrates an inter-connection or route of power flow between two places without regard to number of wires/phases?
One-line diagram
One-line diagram breakers are energized/de-energized.
De-energized
What is made as simple as possible and no attempt is made to arrange the symbols to show their actual physical relationship to the different parts of the apparatus?
Schematic diagram
Electrically operated valve
20 device
Selector device
43 device
AC breaker
52 device
Pallet switch normally open
52A device
Pallet switch normally closed
52B device
What do electrical symbols and device numbers identify?
Components and relays
A ________ is a line drawing made for a technical or scientific purpose that uses symbols and connecting lines to show how a system works.
Schematic
All liquids and gasses are ________ .
Fluids
What is a cut away diagram?
double line drawing showing a system in some detail
What is a pictorial diagram?
single line diagram which simple pictures represent system components
What is a combination diagram?
combination of cut away, pictorial, and schematic
What is a perpendicular projection view showing two dimensions?
Orthographic
Where is a seal in contact located and what does it do?
Parallel with start button, it keeps relay energized after start button released.
What is the purpose of an electrical schematic diagram?
To show scheme of operation without showing physical location of components.
