附件24.3 capacities of moving steadily when working and being stopped any time Chapter 10 10-1 To what degree of quality does the compressed air required for the pneumatic system?How can we ensure such quality of compressed air?Name the equipment needed and illustrate briefly their working principle. 10-2Describe the working process and principle of an impact eylinder 10-3What three principal Why 10-4 'YES'and 'NOR'gates are quite similar.There is a spring set at the bottom of valve in a 'YES'gate but in a'NOR'gate no such spring exists.What is the function of the spring in aYES'component?Would the system still work normally without the spring?Why? Chapter Il 11-1 Design a self-lock circuit with four cylinders 11-2 A two-hand operation circuit (to protect the operator's hands)shown in the figure would not work if a spring in an operating valve is broken.Try to design another two-hand operation circuit to protect the operator's hands and can still work normally even a spring is broken. Problem 11-2 11-3 Try to design a single-acting cylinder controlled by a pneumatic logic circuit,which can achieve the following logic function:s=ab+ab where a and b are the two input signals Chapter 12 12-1 There are two pneumatic switches perated by the driver and the ticket respectivelyto door and describe its working process.附件 24.3 capacities of moving steadily when working and being stopped any time. Chapter 10 10-1 To what degree of quality does the compressed air required for the pneumatic system? How can we ensure such quality of compressed air? Name the equipment needed and illustrate briefly their working principle. 10-2 Describe the working process and principle of an impact cylinder. 10-3 What is the connection order of the three principal components? Why? 10-4 ‘YES’ and ‘NOR’ gates are quite similar. There is a spring set at the bottom of valve in a ‘YES’ gate, but in a ‘NOR’ gate no such spring exists. What is the function of the spring in a ‘YES’ component? Would the system still work normally without the spring? Why? Chapter 11 11-1 Design a self-lock circuit with four cylinders. 11-2 A two-hand operation circuit (to protect the operator’s hands) shown in the figure would not work if a spring in an operating valve is broken. Try to design another two-hand operation circuit to protect the operator’s hands and can still work normally even a spring is broken. Problem 11-2 11-3 Try to design a single-acting cylinder controlled by a pneumatic logic circuit, which can achieve the following logic function: += babas where a and b are the two input signals Chapter 12 12-1 There are two pneumatic switches operated by the driver and the ticket seller respectively to controlled the open and close actions of the bus pneumatic door, design a pneumatic control circuit for the bus door and describe its working process