MCQOPTIONS
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MCQOPTIONS
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. |
Electrolyte back pressure _________ the flow lines on work piece machined using ECDR. |
| A. | Enhances |
| B. | Eliminates |
| C. | Maintains |
| D. | Increases |
| Answer» C. Maintains | |
| 2. |
What happens to the electrolyte conductivity if the gap increases, in ECDR? |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | None of the mentioned |
| Answer» B. Decreases | |
| 3. |
What are the values of pressure, used in backward pressure mode of electrolyte flow? |
| A. | 0.01 to 0.12 MPa |
| B. | 0.15 to 0.46 MPa |
| C. | 0.6 to 2 MPa |
| D. | 5 to 12 MPa |
| Answer» D. 5 to 12 MPa | |
| 4. |
The electrolyte is pumped the ________ of tool and exits through _________ of tool. |
| A. | Centre, side |
| B. | Side, centre |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 5. |
WHAT_ARE_THE_VALUES_OF_PRESSURE,_USED_IN_BACKWARD_PRESSURE_MODE_OF_ELECTROLYTE_FLOW??$ |
| A. | 0.01 to 0.12 MPa |
| B. | 0.15 to 0.46 MPa |
| C. | 0.6 to 2 MPa |
| D. | 5 to 12 MPa |
| Answer» D. 5 to 12 MPa | |
| 6. |
Electrolyte back pressure _____ the flow lines on work piece machined using ECDR?$ |
| A. | Enhances |
| B. | Eliminates |
| C. | Maintains |
| D. | Increases |
| Answer» C. Maintains | |
| 7. |
What happens to the electrolyte conductivity if the gap increases, in ECDR?$ |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | None of the mentioned |
| Answer» B. Decreases | |
| 8. |
Current efficiencies <100 percent may be related to, which of the following incidents? |
| A. | Gas evolution |
| B. | Passive oxide film formation |
| C. | Less dissolution |
| D. | All of the mentioned |
| Answer» E. | |
| 9. |
If sparking occurs due to very less gap between work surfaces, which parts gets damaged? |
| A. | Tool |
| B. | Work piece |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 10. |
What happens to the roundness error if we use the rotation of ECDR tool? |
| A. | Increases |
| B. | Remains same |
| C. | Decreases |
| D. | Enhances |
| Answer» D. Enhances | |
| 11. |
What happens to the overcut size, if we use the electrolyte flow mode under backward pressure? |
| A. | Decreases |
| B. | Increases |
| C. | Increase and then decrease |
| D. | None of the mentioned |
| Answer» B. Increases | |
| 12. |
For high machining accuracy and smaller diametrical oversize, which type of feed rates are required? |
| A. | Very low |
| B. | Low |
| C. | Medium |
| D. | High |
| Answer» E. | |
| 13. |
Overcut produced in ECRD is difference between which of the following parameters? |
| A. | Diameter of tool, diameter of hole |
| B. | Diameter of hole, diameter of tool |
| C. | Depth of tool, diameter of tool |
| D. | Diameter of tool, depth of tool |
| Answer» C. Depth of tool, diameter of tool | |
| 14. |
Material is removed using which part of the electrode in ECDR? |
| A. | Only front |
| B. | Only side |
| C. | Front and side |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 15. |
The electrolyte is pumped the ____ of tool and exits through _____ of tool. |
| A. | Centre, side |
| B. | Side, centre |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 16. |
Of the following, which type of electrodes is used as tool in ECDR? |
| A. | Tubular electrodes |
| B. | Flat electrodes |
| C. | Cylindrical electrodes |
| D. | All of the mentioned |
| Answer» B. Flat electrodes | |
| 17. |
What are the feed rates used in Electrochemical drilling? |
| A. | 0.1 to 0.6 mm/min |
| B. | 0.6 to 1 mm/min |
| C. | 1 to 5 mm/min |
| D. | 6 to 15 mm/min |
| Answer» D. 6 to 15 mm/min | |
| 18. |
What are the values of diameters produced using Electrochemical drilling process? |
| A. | 0.01 to 0.2 mm |
| B. | 1 to 20 mm |
| C. | 30 to 50 mm |
| D. | 60 to 100 mm |
| Answer» C. 30 to 50 mm | |
| 19. |
What is the full form of ECDR in advanced machining processes? |
| A. | Electrochemical Dissolution |
| B. | Electrochemical Drilling |
| C. | Electrochemical Degradation |
| D. | Electrochemical Devastation |
| Answer» C. Electrochemical Degradation | |