Production Technology III Questions

**Production Technology III** **Unit 1:** **Questions:** 1. What is an abrasive wheel? 2. What materials are commonly used in abrasive wheels? 3. What is the function of a bonded abrasive wheel? 4. Define the term "grit size" in abrasive wheels. 6. Explain the difference between a grindi...

**Production Technology III** **Unit 1:** **Questions:** 1. What is an abrasive wheel? 2. What materials are commonly used in abrasive wheels? 3. What is the function of a bonded abrasive wheel? 4. Define the term "grit size" in abrasive wheels. 6. Explain the difference between a grinding wheel and a cutting wheel. 7. How does the hardness of an abrasive wheel affect its performance? 8. Describe the structure of an abrasive wheel. 9. What is the role of the bonding material in an abrasive wheel? 10. Compare vitrified, resinoid, and rubber-bonded abrasive wheels. 11. What are the common defects in abrasive wheels, and how can they be prevented? 12. How do you select an appropriate abrasive wheel for a given machining operation? 13. What is a grinding machine? Name any three types of grinding machines. 14. What is the purpose of coolant in grinding operations? 15. Explain the working principle of a cylindrical grinding machine. 16. Explain the working principle of a surface grinding machine. 17. How does centerless grinding differ from cylindrical grinding? 18. What factors affect the selection of a grinding wheel? 19. Discuss the advantages and disadvantages of grinding over other machining processes. 20. How does the dressing and truing of a grinding wheel improve performance? 21. Explain the role of grit size, bond type, and wheel grade in grinding efficiency. **\ ** **Unit 2:** **Questions: Jigs and Fixtures** 1. What is a jig? Explain with neat sketch. 2. What is a fixture? Explain with proper figure. 3. Mention any three differences between jigs and fixtures. 4. What are the common materials used for making jigs and fixtures? 6. Explain the principle of location in jigs and fixtures. 7. What are the main components of a jig? 8. Describe different types of jigs used in manufacturing. 9. What is the importance of clamping devices in fixtures? 10. How do jigs and fixtures improve productivity and accuracy in machining? 11. Explain the difference between a template jig and a plate jig. 12. Discuss the design considerations for jigs and fixtures. 13. What are the different types of locators used in fixture design? **Questions: Capstan and Turret Lathe** 1. What is a capstan lathe? 2. What is a turret lathe? 3. How do capstan and turret lathes differ from conventional lathes? 4. Name the main parts of a turret lathe. 5. What is the function of the turret head in a turret lathe? 6. Compare capstan and turret lathes in terms of construction and operation. 7. Explain the working principle of a capstan lathe. 8. What types of tools are used in a turret lathe? 9. How does the automatic indexing of the turret improve machining efficiency? 10. Explain the bar feeding mechanism in capstan and turret lathes. **Questions: Broaching and Broaching machine** 1. What is broaching? 2. What is a broaching machine? 3. Name any three types of broaching operations. 4. What are the main components of a broaching machine? 5. List any two advantages of broaching over other machining processes. 6. Explain the difference between internal and external broaching. 7. What are the different types of broaching machines? 8. How does a broaching tool differ from other cutting tools? 9. Explain the working principle of a horizontal broaching machine. 10. What are the limitations of the broaching process? 11. Explain the concept of progressive cutting in broaching.