MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
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_ARE_THE_VALUES_OF_CURRENT_DENSITIES_USED_IN_ECM??$ |
| A. | 0.1 to 2 A/cm<sup>2</sup> |
| B. | 5 to 500 A/cm<sup>2</sup> |
| C. | 600 to 1000 A/cm<sup>2</sup> |
| D. | 1200 to 2800 A/cm<sup>2</sup> |
| Answer» C. 600 to 1000 A/cm<sup>2</sup> | |
| 2. |
Compared to the tool used in ECM, how should be the work piece size?$ |
| A. | Greater than |
| B. | Smaller than |
| C. | Same as tool |
| D. | None of the mentioned |
| Answer» B. Smaller than | |
| 3. |
Which type of adjustment is to be done for gap voltages?$ |
| A. | Continuous adjustment |
| B. | Discontinuous adjustment |
| C. | Periodic adjustment |
| D. | All of the mentioned |
| Answer» B. Discontinuous adjustment | |
| 4. |
State whether following statement is true or false regarding the tools of ECM. |
| A. | , cathodes are produced at high costs and less accurately.” |
| B. | True |
| C. | False |
| Answer» C. False | |
| 5. |
Which of the following are the simplest methods for applying the insulation on tools? |
| A. | Spraying |
| B. | Dipping |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 6. |
Which of the following factors are used to determine the tool geometry? |
| A. | Required shape |
| B. | Electrical conductivity |
| C. | Tool feed rate |
| D. | All of the mentioned |
| Answer» E. | |
| 7. |
Between which of the following values, does the current range? |
| A. | 0.002 to 0.01 A |
| B. | 0.01 to 10 A |
| C. | 50 to 10000 A |
| D. | 105 to 106 A |
| Answer» D. 105 to 106 A | |
| 8. |
What is the value of voltage that the power supply unit supplies for ECM? |
| A. | 0.01 to 1 V |
| B. | 2 to 30 V |
| C. | 50 to 80 V |
| D. | 100 to 160 V |
| Answer» C. 50 to 80 V | |
| 9. |
For high strength or rigidity, which type of coatings are recommended for metals? |
| A. | Other metal coatings |
| B. | Non-metallic coatings |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» C. All of the mentioned | |
| 10. |
Electrolyte supply system should concentrate on which of the following factors? |
| A. | Pressure |
| B. | Supply rate |
| C. | Temperature |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
For large size machining, which type of facilities are used in ECM? |
| A. | Semi-automated facilities |
| B. | Automated facilities |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
What is the role of power supply unit in ECM equipment? |
| A. | Giving feed to tool |
| B. | Electrolyte supply |
| C. | Power supply |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 13. |
In ECM equipment, what is the role of electrolyte supply system? |
| A. | Giving feed to tool |
| B. | Electrolyte supply |
| C. | Power supply |
| D. | None of the mentioned |
| Answer» C. Power supply | |
| 14. |
Feed control system is responsible for which action in ECM? |
| A. | Giving feed to tool |
| B. | Electrolyte supply |
| C. | Power supply |
| D. | None of the mentioned |
| Answer» B. Electrolyte supply | |
| 15. |
Which of the following come under the main components of ECM? |
| A. | Feed control system |
| B. | Work piece holding devices |
| C. | Electrolyte supply system |
| D. | All of the mentioned |
| Answer» E. | |