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				This section includes 17 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 are the values of wavelengths of GaAs laser used in LBM? | 
| A. | 100 – 200 nm | 
| B. | 200 – 400 nm | 
| C. | 600 – 700 nm | 
| D. | 800 – 900 nm | 
| Answer» E. | |
| 2. | What is the wavelength value of CO2 laser used in Laser beam machining? | 
| A. | 0.16 μm | 
| B. | 1.6 μm | 
| C. | 10.6 μm | 
| D. | 106 μm | 
| Answer» D. 106 μm | |
| 3. | What is the wavelength value of neutral gas laser used in LBM? | 
| A. | 633 nm | 
| B. | 694 nm | 
| C. | 856 nm | 
| D. | 1064 nm | 
| Answer» B. 694 nm | |
| 4. | WHAT_IS_THE_WAVELENGTH_VALUE_OF_NEUTRAL_GAS_LASER_USED_IN_LBM??$ | 
| A. | 633 nm | 
| B. | 694 nm | 
| C. | 856 nm | 
| D. | 1064 nm | 
| Answer» B. 694 nm | |
| 5. | What are the values of wavelengths of GaAs laser used in LBM?$ | 
| A. | 100 – 200 nm | 
| B. | 200 – 400 nm | 
| C. | 600 – 700 nm | 
| D. | 800 – 900 nm | 
| Answer» E. | |
| 6. | What is the wavelength value of CO2 laser used in Laser beam machining?$ | 
| A. | 0.16 μm | 
| B. | 1.6 μm | 
| C. | 10.6 μm | 
| D. | 106 μm | 
| Answer» D. 106 ‚âà√≠¬¨‚à´m | |
| 7. | What are the values of wavelengths of Argon laser used in LBM? | 
| A. | 120 – 230 nm | 
| B. | 220 – 310 nm | 
| C. | 330 – 530 nm | 
| D. | 760 – 940 nm | 
| Answer» D. 760 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 940 nm | |
| 8. | What are the values of wavelengths of Excimer laser used in LBM? | 
| A. | 100 – 200 nm | 
| B. | 200 – 500 nm | 
| C. | 600 – 700 nm | 
| D. | 800 – 900 nm | 
| Answer» C. 600 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 700 nm | |
| 9. | What is the wavelength value of Nd-YAG and Nd-glass lasers used in LBM? | 
| A. | 633 nm | 
| B. | 694 nm | 
| C. | 856 nm | 
| D. | 1064 nm | 
| Answer» E. | |
| 10. | What is the wavelength value of Ruby laser used in Laser beam machining? | 
| A. | 633 nm | 
| B. | 694 nm | 
| C. | 856 nm | 
| D. | 1064 nm | 
| Answer» C. 856 nm | |
| 11. | Which types of lasers are used in Laser beam machining? | 
| A. | Continuous wave | 
| B. | Pulsed mode | 
| C. | All of the mentioned | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |
| 12. | Which of the following are different types of lasers used in Laser beam machining? | 
| A. | Solid-state ion | 
| B. | Neutral gas | 
| C. | Semiconductor | 
| D. | All of the mentioned | 
| Answer» E. | |
| 13. | Laser beam machining uses which type of power sources for machining? | 
| A. | Very low power | 
| B. | Low power | 
| C. | Medium power | 
| D. | High power | 
| Answer» E. | |
| 14. | Which of the following are the properties of a laser? | 
| A. | Highly collimated | 
| B. | Monochromatic | 
| C. | Coherent light beam | 
| D. | All of the mentioned | 
| Answer» E. | |
| 15. | What is the abbreviation of Laser? | 
| A. | Light allowed simple emission of radiation | 
| B. | Light amplification by stimulated emission of radiation | 
| C. | Light amplified simultaneous emission of rays | 
| D. | Light amplified stimulated emanation of rays | 
| Answer» C. Light amplified simultaneous emission of rays | |
| 16. | LBM offers a good solution for which material properties below? | 
| A. | Thermal conductivity | 
| B. | Specific heat | 
| C. | Boiling temperature | 
| D. | All of the mentioned | 
| Answer» E. | |
| 17. | What is the full form of LBM in advanced machining processes? | 
| A. | Laser Beam Manufacturing | 
| B. | Laser Beam Machining | 
| C. | Light Blast Manufacturing | 
| D. | Light Beam Machining | 
| Answer» C. Light Blast Manufacturing | |