 
			 
			MCQOPTIONS
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				This section includes 15 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. | What is the value of minimum corner radius obtained by drilling in Laser beam machining? | 
| A. | 0.10 mm | 
| B. | 0.25 mm | 
| C. | 0.50 mm | 
| D. | 0.65 mm | 
| Answer» C. 0.50 mm | |
| 2. | What are the tolerance values obtained when we use laser drilling process? | 
| A. | 0.1 – 5% | 
| B. | 5 – 20% | 
| C. | 25 – 50% | 
| D. | 50 – 80% | 
| Answer» C. 25 – 50% | |
| 3. | What is the maximum value of drilling depth in trepanning method of laser drilling process? | 
| A. | 1.7 mm | 
| B. | 4.3 mm | 
| C. | 6.4 mm | 
| D. | 7.9 mm | 
| Answer» D. 7.9 mm | |
| 4. | What is the depth-to-diameter ratio obtained in drilling process using Laser beam machining? | 
| A. | 10:1 | 
| B. | 20:1 | 
| C. | 50:1 | 
| D. | 80:1 | 
| Answer» D. 80:1 | |
| 5. | The taper obtained in Laser drilling process is how much of the hole diameter? | 
| A. | 1 – 5% | 
| B. | 5 – 20% | 
| C. | 20 – 50% | 
| D. | 50 – 90% | 
| Answer» C. 20 – 50% | |
| 6. | What are the values of entrance angles that vary in Laser drilling process? | 
| A. | 0.1 – 1 oC | 
| B. | 1 – 5 oC | 
| C. | 15 – 90 oC | 
| D. | 90 – 150 oC | 
| Answer» D. 90 – 150 oC | |
| 7. | What is the value the maximum optimum depth that can be machined using Laser drilling process? | 
| A. | 0.17 mm | 
| B. | 1.7 mm | 
| C. | 17.1 mm | 
| D. | 171.7 mm | 
| Answer» C. 17.1 mm | |
| 8. | What are the values of diameters obtained by using Laser drilling process? | 
| A. | 0.0001 – 0.001 mm | 
| B. | 0.001 – 0.01 mm | 
| C. | 0.005 – 1.25 mm | 
| D. | 1.5 – 10.5 mm | 
| Answer» D. 1.5 – 10.5 mm | |
| 9. | Which method mentioned below is used for drilling of large size holes? | 
| A. | Direct drilling | 
| B. | Drill and ream | 
| C. | Trepanning | 
| D. | All of the mentioned | 
| Answer» D. All of the mentioned | |
| 10. | The hole size in direct drilling depend up on which of the factors below? | 
| A. | Input power | 
| B. | Focusing adjustments | 
| C. | Input power & Focusing adjustments | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |
| 11. | Which of the following are different laser drilling processes in Laser beam machining? | 
| A. | Direct drilling | 
| B. | Drill and ream | 
| C. | Trepanning | 
| D. | All of the mentioned | 
| Answer» E. | |
| 12. | Laser drilling has proven to be more efficient in which of the following factors? | 
| A. | Cost | 
| B. | Quality | 
| C. | Reliability | 
| D. | All of the mentioned | 
| Answer» E. | |
| 13. | Other non-conventional processes lay behind Laser beam machining in drilling process because of which factors below? | 
| A. | High cost | 
| B. | Long lead times | 
| C. | Low machining speeds | 
| D. | All of the mentioned | 
| Answer» E. | |
| 14. | State whether the following statement is true or false regarding the drilling using LBM.“Compared to LBM, conventional machining is more accurate and efficient.” | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 15. | Which of the following are the applications of Laser Beam Machining? | 
| A. | Drilling | 
| B. | Cutting | 
| C. | Texturing | 
| D. | All of the mentioned | 
| Answer» E. | |