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				This section includes 20 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. | Higher material removal rates are associated with _________ feed rates and _________ tool diameters. | 
| A. | Larger, smaller | 
| B. | Smaller, larger | 
| C. | Smaller, smaller | 
| D. | Larger, larger | 
| Answer» E. | |
| 2. | What are the values of feed rates used in ES drilling process? | 
| A. | 0.01 to 0.5 mm/min | 
| B. | 0.75 to 2.5 mm/min | 
| C. | 3 to 4.5 mm/min | 
| D. | 5 to 7.5 mm/min | 
| Answer» C. 3 to 4.5 mm/min | |
| 3. | What are the values of voltages used in ES drilling process? | 
| A. | 10 to 40 V | 
| B. | 40 to 70 V | 
| C. | 70 to 150 V | 
| D. | 150 to 300 V | 
| Answer» D. 150 to 300 V | |
| 4. | Which of the following parameters must be carefully monitored for satisfactory machining? | 
| A. | Acid temperature | 
| B. | Pressure | 
| C. | Concentration | 
| D. | All of the mentioned | 
| Answer» E. | |
| 5. | State whether the following statement is true or false regarding ES drilling.“In ES drilling, hydrochloric acid is used for machining aluminium and its alloys.” | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 6. | WHICH_OF_THE_FOLLOWING_PARAMETERS_MUST_BE_CAREFULLY_MONITORED_FOR_SATISFACTORY_MACHINING??$ | 
| A. | Acid temperature | 
| B. | Pressure | 
| C. | Concentration | 
| D. | All of the mentioned | 
| Answer» E. | |
| 7. | What are the values of feed rates used in ES drilling process?$ | 
| A. | 0.01 to 0.5 mm/min | 
| B. | 0.75 to 2.5 mm/min | 
| C. | 3 to 4.5 mm/min | 
| D. | 5 to 7.5 mm/min | 
| Answer» C. 3 to 4.5 mm/min | |
| 8. | What are the values of voltages used in ES drilling process?$ | 
| A. | 10 to 40 V | 
| B. | 40 to 70 V | 
| C. | 70 to 150 V | 
| D. | 150 to 300 V | 
| Answer» D. 150 to 300 V | |
| 9. | How many holes can be drilled simultaneously using ES drilling process? | 
| A. | One hole | 
| B. | Two holes | 
| C. | Three holes | 
| D. | Multiple holes | 
| Answer» E. | |
| 10. | What are the normal hole depth tolerance values in ES drilling? | 
| A. | ± 0.03 mm | 
| B. | ± 0.05 mm | 
| C. | ± 0.07 mm | 
| D. | ± 0.09 mm | 
| Answer» C. ¬¨¬®¬¨¬± 0.07 mm | |
| 11. | Higher material removal rates are associated with _____ feed rates and _____ tool diameters. | 
| A. | Larger, smaller | 
| B. | Smaller, larger | 
| C. | Smaller, smaller | 
| D. | Larger, larger | 
| Answer» E. | |
| 12. | What are the values of electrolyte pressure recommended for ES drilling? | 
| A. | 50 – 100 kPa | 
| B. | 100 – 250 kPa | 
| C. | 275 – 400 kPa | 
| D. | 500 – 750 kPa | 
| Answer» D. 500 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 750 kPa | |
| 13. | Which of the following are the metals, which can be machined using sulphuric acid? | 
| A. | Carbon steels | 
| B. | Haste alloy | 
| C. | Inconel | 
| D. | All of the mentioned | 
| Answer» E. | |
| 14. | State whether following statement is true or false regarding ES drilling. | 
| A. | |
| B. | True | 
| Answer» B. True | |
| 15. | What is the concentration of electrolytes that are commonly used in ES drilling? | 
| A. | 1 to 10wt % | 
| B. | 12 to 20wt % | 
| C. | 23 to 30wt % | 
| D. | 34 to 50wt % | 
| Answer» C. 23 to 30wt % | |
| 16. | Which of the following acts as the cathodic tool in ES drilling? | 
| A. | Titanium base | 
| B. | Platinum wire | 
| C. | Glass nozzle | 
| D. | Work piece | 
| Answer» C. Glass nozzle | |
| 17. | Compared to the required diameter of the hole, how is the nozzle diameter? | 
| A. | Smaller | 
| B. | Larger | 
| C. | Same as required | 
| D. | All of the mentioned | 
| Answer» B. Larger | |
| 18. | What is the value of diameter of glass nozzle used in Electrostream drilling? | 
| A. | 0.01 – 0.02 mm | 
| B. | 0.025 – 0.5 mm | 
| C. | 0.5 – 0.75 mm | 
| D. | 0.75 – 1.25 mm | 
| Answer» C. 0.5 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.75 mm | |
| 19. | This Electrostream drilling is used when we cannot drill which of the following type of holes? | 
| A. | Too deep holes by EDM | 
| B. | Small holes by STEM | 
| C. | All of the mentioned | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |
| 20. | In advanced machining processes, what is the full form of ES drilling? | 
| A. | Electro stream | 
| B. | Electrical shaped | 
| C. | Electron shaped | 
| D. | Electric shock | 
| Answer» B. Electrical shaped | |