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				This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Advanced Machining knowledge and support exam preparation. Choose a topic below to get started.
| 1. | State whether the following statement is true or false regarding advantages of PCM.“Patterns can be reproduced easily.” | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 2. | Which of the following factors can change the parameters of etch such as depth, size of hole etc.? | 
| A. | Time of etch | 
| B. | Type of etchant | 
| C. | All of the mentioned | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |
| 3. | State whether the following statement is true or false regarding advantages of PCM.“In PCM, lead times are large, when compared to that required for hard tooling using traditional means.” | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 4. | What is the cost per unit for low production volumes of complex designs using PCM? | 
| A. | Low | 
| B. | Medium | 
| C. | High | 
| D. | None of the mentioned | 
| Answer» B. Medium | |
| 5. | State whether the following statement is true or false about applications of PCM.“Using PCM, very high tempered materials are machined easily.” | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 6. | WHAT_IS_THE_COST_PER_UNIT_FOR_LOW_PRODUCTION_VOLUMES_OF_COMPLEX_DESIGNS_USING_PCM??$ | 
| A. | Low | 
| B. | Medium | 
| C. | High | 
| D. | None of the mentioned | 
| Answer» B. Medium | |
| 7. | Which of the following factors can change the parameters of etch such as depth, size of hole etc.?$ | 
| A. | Time of etch | 
| B. | Type of etchant | 
| C. | All of the mentioned | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |
| 8. | State whether following statement is true or false regarding advantages of PCM. | 
| A. | |
| B. | True | 
| Answer» B. True | |
| 9. | Which of the following properties of materials are changed by using Photochemical milling? | 
| A. | Hardness of material | 
| B. | Ductility of material | 
| C. | Grain structure | 
| D. | None of the mentioned | 
| Answer» E. | |
| 10. | How much amount of burr is produced, when components are machined using PCM? | 
| A. | Small | 
| B. | Medium | 
| C. | Large | 
| D. | No burr | 
| Answer» E. | |
| 11. | Which of the following are the components that can be machined using PCM? | 
| A. | Filters and screens | 
| B. | Lead frames | 
| C. | Connectors and probes | 
| D. | All of the mentioned | 
| Answer» E. | |
| 12. | Which of the following industries use PCM for different applications? | 
| A. | Electronic | 
| B. | Automotive | 
| C. | Telecommunication | 
| D. | All of the mentioned | 
| Answer» E. | |
| 13. | What type of work pieces must be used in Photochemical milling process? | 
| A. | Bent surfaces | 
| B. | Rolled surfaces | 
| C. | Flat surfaces | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |
| 14. | What is the value of thickness of work pieces to be used in PCM? | 
| A. | 0.001 – 0.003 mm | 
| B. | 0.013 – 1.50 mm | 
| C. | 1.50 – 2.35 mm | 
| D. | 2.50 – 3.33 mm | 
| Answer» C. 1.50 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2.35 mm | |
| 15. | Which of the following are the typical applications of Photo chemical milling? | 
| A. | Production of signs | 
| B. | Production of labels | 
| C. | Fabrication of boxes and enclosures | 
| D. | All of the mentioned | 
| Answer» E. | |
| 16. | State whether following statement is true or false about applications of PCM. | 
| A. | |
| B. | True | 
| Answer» B. True | |
| 17. | Which of the following materials are excellent for Photochemical milling? | 
| A. | Brittle materials | 
| B. | Ductile materials | 
| C. | Elastic materials | 
| D. | None of the mentioned | 
| Answer» B. Ductile materials | |
| 18. | Which of the following non-metallic materials that can be machined using PCM? | 
| A. | Glass | 
| B. | Ceramics | 
| C. | Some plastics | 
| D. | All of the mentioned | 
| Answer» E. | |
| 19. | Which of the following are the metals that can be machined using Photo chemical milling? | 
| A. | Aluminium | 
| B. | Copper | 
| C. | Nickel | 
| D. | All of the mentioned | 
| Answer» E. | |