MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 31 Mcqs, each offering curated multiple-choice questions to sharpen your Foundry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following processes is most suitable for the casting of connecting rods and pistons of the automobile? |
| A. | Precision investment casting |
| B. | Gravity die casting |
| C. | Shell moulding |
| D. | Centrifugal casting |
| Answer» C. Shell moulding | |
| 2. |
All kind of metals can be cast easily in the gravity die casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Better surface finish with the close dimensional tolerances of the casting can be obtained in gravity die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
If the heavy casting is produced, then which of the following can be used to maintain the progressive solidification? |
| A. | Sprue |
| B. | Riser |
| C. | Chills |
| D. | Pouring basin |
| Answer» D. Pouring basin | |
| 5. |
Water cooling is always preferred than the air cooling for the extraction of heat from the castings through the mould. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Gravity die casting is best suited for highly viscous molten metal and for producing the complex shape of castings. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which of the following show can the approximate number of castings be produced by gravity die casting? |
| A. | 0-50 |
| B. | 50-100 |
| C. | 100-250,000 |
| D. | 250,000-500,000 |
| Answer» D. 250,000-500,000 | |
| 8. |
Gravity die casting makes use of a permanent mould. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Molten metal is poured into the mould due to the effect of gravity with _______ external pressure in gravity die casting. |
| A. | High |
| B. | Low |
| C. | Medium |
| D. | No |
| Answer» E. | |
| 10. |
A permanent mould is made up of two halves. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
IF_THE_HEAVY_CASTING_IS_PRODUCED,_THEN_WHICH_OF_THE_FOLLOWING_CAN_BE_USED_TO_MAINTAIN_THE_PROGRESSIVE_SOLIDIFICATION??$ |
| A. | Sprue |
| B. | Riser |
| C. | Chills |
| D. | Pouring basin |
| Answer» D. Pouring basin | |
| 12. |
MOLTEN_METAL_IS_POURED_INTO_THE_MOULD_DUE_TO_THE_EFFECT_OF_GRAVITY_WITH_________EXTERNAL_PRESSURE_IN_GRAVITY_DIE_CASTING.?$ |
| A. | High |
| B. | Low |
| C. | Medium |
| D. | No |
| Answer» E. | |
| 13. |
All kind of metals can be cast easily in the gravity die casting.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Better surface finish with the close dimensional tolerances of the casting can be obtained in gravity die casting.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
Gravity_die_casting_makes_use_of_a_permanent_mould.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Which of the following processes is most suitable for the casting of connecting rods and pistons of automobile? |
| A. | Precision investment casting |
| B. | Gravity die casting |
| C. | Shell moulding |
| D. | Centrifugal casting |
| Answer» C. Shell moulding | |
| 17. |
Water cooling is always preferred than the air cooling for the extraction of heat from the castings through the mould? |
| A. | True |
| B. | False |
| Answer» C. | |
| 18. |
A permanent mould is made up of two halves? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 19. |
Air cooling is sufficient to maintain temperature for the large and thick-walled castings in gravity die casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 20. |
The thickness of the permanent mould is _______ |
| A. | High |
| B. | Low |
| C. | Negligible |
| D. | Moderate |
| Answer» E. | |
| 21. |
Continuous extraction of heat is necessary to ensure higher mould life and better casting cycle times. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 22. |
In gravity die casting, __________ the thickness of the mold walls, greater the amount of heat removal. |
| A. | Lesser |
| B. | Equal |
| C. | Greater |
| D. | Negligible |
| Answer» D. Negligible | |
| 23. |
The die life is less for higher melting temperature alloys in gravity die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 24. |
For faster cooling, fins are provided __________ the permanent mould. |
| A. | Inside |
| B. | Outside |
| C. | At the surface |
| D. | Near the end |
| Answer» C. At the surface | |
| 25. |
Which of the following materials is mostly used as a die material in gravity die casting? |
| A. | Grey cast iron |
| B. | Lead |
| C. | Magnesium |
| D. | Aluminium |
| Answer» B. Lead | |
| 26. |
The mold halves are clamped by ________ in gravity die casting. |
| A. | Lathes |
| B. | Pneumatic |
| C. | Toggles |
| D. | Lathes, Pneumatic and Toggles |
| Answer» E. | |
| 27. |
Which of the following considerations is independent for the selection of moulding material? |
| A. | Size of the casting |
| B. | Frequency of casting cycle |
| C. | Pouring temperature |
| D. | Fluidity of pouring melt |
| Answer» E. | |
| 28. |
A chill is used to promote directional solidification in gravity die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 29. |
Gravity die casting is best suited for highly viscous molten metal and for producing complex shape of castings. |
| A. | True |
| B. | False |
| Answer» C. | |
| 30. |
Cores in permanent moulds used in gravity die casting are made up of ___________ |
| A. | Metals |
| B. | Metal and Non-metals |
| C. | Metals and sand |
| D. | Only sand |
| Answer» D. Only sand | |
| 31. |
Blowing of air is required in water passages is gravity die casting. |
| A. | True |
| B. | False |
| Answer» C. | |