MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Manufacturing Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which of the following method, dopants are added? |
| A. | crystal pulling method |
| B. | melt spinning |
| C. | floating zone |
| D. | vacuum arc melting |
| Answer» B. melt spinning | |
| 2. |
The zone at which a rod of polycrystalline silicon rests on a single crystal and an induction coil heats these two pieces is called as? |
| A. | crystal pulling method |
| B. | melt spinning |
| C. | floating zone |
| D. | vacuum arc melting |
| Answer» D. vacuum arc melting | |
| 3. |
Which of the following casting technique, a seed crystal is dipped into the molten metal and then pulled out slowly? |
| A. | crystal pulling method |
| B. | melt spinning |
| C. | single crystal |
| D. | Sankaranarayanan Ramasamy method |
| Answer» B. melt spinning | |
| 4. |
In which of the following casting method, alloy is melted by induction in a ceramic crucible? |
| A. | conventional casting |
| B. | melt spinning |
| C. | pressure die casting |
| D. | vacuum arc melting |
| Answer» C. pressure die casting | |
| 5. |
Which of the following test allows us to remove specimens form various casting sections? |
| A. | surface defects |
| B. | pressure tightness |
| C. | destructive |
| D. | non-destructive |
| Answer» C. destructive | |
| 6. |
Which of the following parameter is used to determine the nature of cast components by sealing the opening in casting? |
| A. | Surface defects |
| B. | Pressure tightness |
| C. | Ductility |
| D. | Brittleness |
| Answer» C. Ductility | |
| 7. |
Which of the following casting technique has a greater impact in semiconductor industry? |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | induction melting |
| Answer» D. induction melting | |
| 8. |
In which of the casting process, the mold has either corkscrew or helical shape construction? |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | induction melting |
| Answer» D. induction melting | |
| 9. |
In which of the following casting process, preheating of ceramic mold is done by radiation? |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | induction melting |
| Answer» C. single crystal | |
| 10. |
In which of the following casting process, the metal being poured into the mold begins to solidify at ceramic walls? |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | induction melting |
| Answer» B. directional solidification | |
| 11. |
IN_______________A_ROD_OF_POLYCRYSTALLINE_SILICON_RESTS_ON_A_SINGLE_CRYSTAL_AND_AN_INDUCTION_COIL_HEATS_THESE_TWO_PIECES.?$ |
| A. | crystal pulling method |
| B. | melt spinning |
| C. | floating zone |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 12. |
In ______________ dopants are added.$ |
| A. | crystal pulling method |
| B. | melt spinning |
| C. | floating zone |
| D. | none of the mentioned |
| Answer» B. melt spinning | |
| 13. |
In ____________ a seed crystal is dipped into the molten metal and then pulled out slowly? |
| A. | crystal pulling method |
| B. | melt spinning |
| C. | single crystal |
| D. | none of the mentioned |
| Answer» B. melt spinning | |
| 14. |
In _____________ the alloy is melted by induction in a ceramic crucible. |
| A. | conventional casting |
| B. | melt spinning |
| C. | single crystal |
| D. | none of the mentioned |
| Answer» C. single crystal | |
| 15. |
In ___________ testing, specimens are removed from various sections of a casting. |
| A. | surface defects |
| B. | pressure tightness |
| C. | destructive |
| D. | none of the mentioned |
| Answer» C. destructive | |
| 16. |
_____________ of cast components is determined by sealing the openings in the casting. |
| A. | Surface defects |
| B. | Pressure tightness |
| C. | Ductility |
| D. | None of the mentioned |
| Answer» C. Ductility | |
| 17. |
____________ is a major activity in the semiconductor industry. |
| A. | Conventional casting |
| B. | Directional solidification |
| C. | Single crystal growing |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 18. |
In ____________ process, the mold has a constriction in the shape of a corkscrew or helix. |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 19. |
In ______________ process, the ceramic mold is preheated by radiant heating. |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | none of the mentioned |
| Answer» C. single crystal | |
| 20. |
In _____________ process, the metal is poured into the mold and begins to solidify at the ceramic walls. |
| A. | conventional casting |
| B. | directional solidification |
| C. | single crystal |
| D. | none of the mentioned |
| Answer» B. directional solidification | |