Class work 1 Student name:
Module (1) Class
Q1) Define (what is) the Electo-Pneumatics
It is the use of electrical signals to control pneumatic systems
Q2) List three applications of electro-pneumatics
• Filling
• Packaging
• Handling of work pieces
• Stamping
• Metal forming
• Automation processes
Q3) State three advantages of electro-pneumatics
• Cheap
• Greater reliability
• Easy handling
• Simple installation
• Easily modified and adapted
• Secure mounting
Q4) Give two examples of signal processing in electro-pneumatics
Relays
Contactor
PLC
Q5) Give two examples of signal input in electro-pneumatics
Pushbutton switches
Limit switches
Sensors
Q6) Give two examples of signal output in electro-pneumatics
5/2 single solenoid valve
5/2 double solenoid valve
Q7) Give two examples of command execution in electro-pneumatics
Cylinders
Motors
Optical display
Q8) List four electro-pneumatic components
DC power supply
Switches
Relays
Sensors
Solenoid valves
DC power supply
Switches
Relays
Sensors
Solenoid valves
Q9) What are the two types of electric current
Direct current DC
Alternating current AC
Q10) What is the function of the DC power supply
It is used to convert the 230 V AC into 24 V DC
Q11) what are the three components which consist the DC power supply
1- Transformer used to reduce the voltage from 230 V to 24 V
2- Rectifier used to convert the current from AC into DC
3- Stabilizer used to smooth and maintain constant voltage at the output
Q12) List three types of switches
1- Pushbutton switches
2- Control (Detent) switches
3- Limit switches
Q13) what is the difference between control (detent) switch and pushbutton switch
If you release the switch
The pushbutton will return back to the normal position
The detent will remain in the last position
Q14) what is the difference between N/O pushbutton switch and N/C pushbutton switch
N/O pushbutton switch is used to connect the current
N/C pushbutton switch is used to interrupt (cut) the current
Q15) what are the types of contacts in pushbutton switches
1- N/O switches
2- N/C switches
3- Changeover switches
Q16) What is the function switches
They are used to connect and interrupt the electric current
Q17) What is the function of the limit switch
It is used for automatic operation
Q18) which part in pneumatic system is similar to the electrical limit switch
3/2 way valve, roller lever operated
Q19) what is the relay
It is an electromagnetic switch and it has a coil and some contact points
Q20) List two advantages of relays
1- it can be used to switch one or more contacts
2- it is used to switch a high current with a low current circuit
Module (1) Class
Q1) Define (what is) the Electo-Pneumatics
It is the use of electrical signals to control pneumatic systems
Q2) List three applications of electro-pneumatics
• Filling
• Packaging
• Handling of work pieces
• Stamping
• Metal forming
• Automation processes
Q3) State three advantages of electro-pneumatics
• Cheap
• Greater reliability
• Easy handling
• Simple installation
• Easily modified and adapted
• Secure mounting
Q4) Give two examples of signal processing in electro-pneumatics
Relays
Contactor
PLC
Q5) Give two examples of signal input in electro-pneumatics
Pushbutton switches
Limit switches
Sensors
Q6) Give two examples of signal output in electro-pneumatics
5/2 single solenoid valve
5/2 double solenoid valve
Q7) Give two examples of command execution in electro-pneumatics
Cylinders
Motors
Optical display
Q8) List four electro-pneumatic components
DC power supply
Switches
Relays
Sensors
Solenoid valves
DC power supply
Switches
Relays
Sensors
Solenoid valves
Q9) What are the two types of electric current
Direct current DC
Alternating current AC
Q10) What is the function of the DC power supply
It is used to convert the 230 V AC into 24 V DC
Q11) what are the three components which consist the DC power supply
1- Transformer used to reduce the voltage from 230 V to 24 V
2- Rectifier used to convert the current from AC into DC
3- Stabilizer used to smooth and maintain constant voltage at the output
Q12) List three types of switches
1- Pushbutton switches
2- Control (Detent) switches
3- Limit switches
Q13) what is the difference between control (detent) switch and pushbutton switch
If you release the switch
The pushbutton will return back to the normal position
The detent will remain in the last position
Q14) what is the difference between N/O pushbutton switch and N/C pushbutton switch
N/O pushbutton switch is used to connect the current
N/C pushbutton switch is used to interrupt (cut) the current
Q15) what are the types of contacts in pushbutton switches
1- N/O switches
2- N/C switches
3- Changeover switches
Q16) What is the function switches
They are used to connect and interrupt the electric current
Q17) What is the function of the limit switch
It is used for automatic operation
Q18) which part in pneumatic system is similar to the electrical limit switch
3/2 way valve, roller lever operated
Q19) what is the relay
It is an electromagnetic switch and it has a coil and some contact points
Q20) List two advantages of relays
1- it can be used to switch one or more contacts
2- it is used to switch a high current with a low current circuit
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