MCQOPTIONS
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MCQOPTIONS
This section includes 28 Mcqs, each offering curated multiple-choice questions to sharpen your Forming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Tooling for EMF process is relatively inexpensive. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The EMF process allows increased ductility for______________ alloys. |
| A. | Chromium – molybdenum |
| B. | aluminium |
| C. | nickel |
| D. | chromium – mangnese |
| Answer» C. nickel | |
| 3. |
The die used in electromagnetic process should be made of material with _________________ |
| A. | high electrical conductivity |
| B. | low electical conductivity |
| C. | low ductility |
| D. | high creep resistance |
| Answer» C. low ductility | |
| 4. |
Electromagnetic forming is rarely used to form tubular shapes. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The maximum pressure applied by the compression coil is approximately _______________ |
| A. | 300 MPa |
| B. | 340 MPa |
| C. | 375 MPa |
| D. | 400 MPa |
| Answer» C. 375 MPa | |
| 6. |
Which of the following is not used in electromagnetic forming process? |
| A. | A capacitor bank |
| B. | A forming coil |
| C. | A foeld shaper |
| D. | Stiffening ribs |
| Answer» E. | |
| 7. |
THE_DIE_USED_IN_ELECTROMAGNETIC_PROCESS_SHOULD_BE_MADE_OF_MATERIAL_WITH__________________?$ |
| A. | high electrical conductivity |
| B. | low electical conductivity |
| C. | low ductility |
| D. | high creep resistance |
| Answer» C. low ductility | |
| 8. |
THE_JOINTS_MADE_BY_AN_ELECTROMAGNETIC_FORMING_PROCESS_ARE_MUCH_STRONGER_THAN_THE_PARENT_MATERIAL.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
ELECTROMAGNETIC_FORMING_IS_RARELY_USED_TO_FORM_TUBULAR_SHAPES.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
WHICH_OF_THE_FOLLOWING_IS_THE_MAIN_ADVANTAGE_OF_USING_THE_ELECTROMAGNETIC_FORMING_PROCESS??$ |
| A. | High speed |
| B. | Low maintenance |
| C. | Applicable to all materials |
| D. | No spring-back |
| Answer» E. | |
| 11. |
Tooling for EMF process is relatively inexpensive.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The EMF process allows increased ductility for______________ alloys.$ |
| A. | Chromium – molybdenum |
| B. | aluminium |
| C. | nickel |
| D. | chromium – mangnese |
| Answer» C. nickel | |
| 13. |
EMF is primarily used for which of the following material? |
| A. | Silver |
| B. | High carbon steel |
| C. | Chromium alloys |
| D. | Martensitic steel |
| Answer» B. High carbon steel | |
| 14. |
The maximum pressure applied by the compression coil is approximately ______________? |
| A. | 300 MPa |
| B. | 340 MPa |
| C. | 375 MPa |
| D. | 400 MPa |
| Answer» C. 375 MPa | |
| 15. |
The process of electromagnetic forming does not require any kind of lubrication? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Springback effect of the workpiece material is eliminated in EMF process. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
The efficiency of electromagnetic forming mainly depends on the resistivity of material being formed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 18. |
Which of the following is not true about EMF? |
| A. | Leaves tool marks |
| B. | Does not require lubrication |
| C. | Does not require any cleanup |
| D. | It is primarily applied in the forming of good conducting materials |
| Answer» B. Does not require lubrication | |
| 19. |
Electromagnetic forming cannot be used for materials of poor electrical conductivity. |
| A. | True |
| B. | False |
| Answer» C. | |
| 20. |
For EMF process, resistivity of the workpiece material should be _____________ |
| A. | greater than 10 micro-ohm-cm |
| B. | less than 8 micro-ohm-cm |
| C. | less than 15 micro-ohm-cm |
| D. | in the range 10-20 micro-ohm-cm |
| Answer» D. in the range 10-20 micro-ohm-cm | |
| 21. |
Which of the following methods of forming is not the part of electromagnetic forming? |
| A. | Compression |
| B. | Expansion |
| C. | Shearing |
| D. | Counter forming |
| Answer» D. Counter forming | |
| 22. |
In EMF process, forming pulse rate is kept as high as possible |
| A. | True |
| B. | False |
| Answer» C. | |
| 23. |
In the electromagnetic forming process, the forming pulse is kept longer to optimize the use of energy. |
| A. | True |
| B. | False |
| Answer» C. | |
| 24. |
In EMF process, eddy currents are induced in a conductive workpiece. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 25. |
Metal used for electroforming process absorbs energy from the magnetic field to get deform. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 26. |
Which of the following is true about EMF process? |
| A. | Intense electric field is produced using capacitors and coils |
| B. | Heavy current is made to flow through the workpiece |
| C. | Intense magnetic field is produced for few microseconds |
| D. | Principle of electromagnetic induction is used to pre-heat the workpiece |
| Answer» D. Principle of electromagnetic induction is used to pre-heat the workpiece | |
| 27. |
The magnetic field interacts with metal to generate heat in the metal which causes forming process. |
| A. | True |
| B. | False |
| Answer» C. | |
| 28. |
In electromagnetic forming, highly intense magnetic field is used for the forming process. |
| A. | True |
| B. | False |
| Answer» B. False | |