Tpc 102 Reading Schematics And Symbols Flashcards
A schematic is a line drawing made for a scientific or technical purpose that uses?
Symbols and lines
What diagram is a double-line drawing showing a system in some detail?
A cutaway diagram
Current that flows steadily in one direction is called?
Direct current, DC
How is the flow of a fluid in piping diagrams indicated?
Arrows
The alternate flow is what kind of diagram?
Supplementary diagram
What is the symbol for exposed wiring?
What is the symbol for a vent line in a piping system?
Dashed lines
What are some clues that are giving in a schematic?
The drawing title
Parts list
Notes by the engineer
What is the symbol for a pressure gauge?
What is the last step when reading an electrical circuit?
Examine the actual circuit
What is the symbol for electrical lines connecting
What is the symbol for a SPDT?
What is the symbol for a transformer?
Show the symbol for a fuse
Show the symbol for a normally closed contact?
In what circuit type does the entire current flow from one load to the next?
Series circuit
In what type of circuit does each load have the capability of being turned on or off independently of the others?
Parallel circuit
An important function of a wiring diagram is to show how the parts of a circuit are connected in what way?
Externally
What does the letter L represent in electrical circuits?
It’s how the motor is connected to the power source
The forward switch is represented how?
FOR , abbreviation
The flow of the material in a pipe is controlled and adjusted by?
Valves
What is the symbol for a flanged joint?
How do you change the direction of flow?
Using elbows
What connects two pipes of different diameters?
A reducer
What is the symbol for a screwed Tee fitting?
What devices are used to control the amount of flow?
Valves
What is a cock valve used for?
They are used when flow must be started quickly and stopped quickly
What is the symbol for a globe valve?
What are check valves used for?
They are used ensure that a fluid moves in only one direction
The last number in the note always indicates?
The size of the branch line
Both hydraulic and pneumatic systems are?
Fluid-power systems
What is an actuator?
Is the device in either system that reacts to the pressure of the fluid and does the work
What is the symbol for a pneumatic receiver?
The symbols for a valve show it’s?
Connections, flow paths, and function
What is the symbol for a 3 position 4 way valve that is closed?
What is the symbol for an electric motor?
What directs the flow of brake fluid in the braking system?
The valve assembly in the master cylinder
A closed system is one in which?
The same fluid is used again and again
Phantom lines are also referred to as?
Local areas
What is the symbol for a solenoid operated control?
What is another name for the evaporator in and A/C system
The liquid chiller
What is the symbol of a rotary compressor?
What are examples of a direct control in a refrigeration system?
TXV ( thermostatic expansion valve )
ADR
What is the symbol for electrical wires that are to be installed in the field?
What can a transistor do?
Amplify and switch electrical signals
What does fusion mean?
The joining of two materials by melting them together
What kind of welding is a “ squeeze-and-heat” process?
Resistance welding
What is the symbol for a chamfered weld?
What are field welds indicated by?
Flag at the bend of the arrow
Where would you find the dimensions for the welds in a blueprint?
The legend
