MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The chances of defects in the castings by cold chamber die casting are more than the castings produced by hot chamber die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Using of the ladle in the cold chamber die casting has no affects on contact time between the molten metal and the shot chamber. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following materials is not suitable to be cast by a hot chamber die casting process? |
| A. | Lead |
| B. | Tin |
| C. | Aluminium |
| D. | Zinc |
| Answer» D. Zinc | |
| 4. |
In hot chamber die casting, the plunger is also used for taking back of unused molten metal to the gooseneck after the fulfilling of the cavity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
In hot chamber die casting processes, downward motion of plunger in the gooseneck leads to injection of molten metal into the cavity with high pressure. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
A single piece or unitary part of the metallic die is used for making castings in die casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
WHICH_OF_THE_FOLLOWING_MATERIALS_IS_NOT_SUITABLE_TO_BE_CAST_BY_HOT_CHAMBER_DIE_CASTING_PROCESS??$ |
| A. | Lead |
| B. | Tin |
| C. | Aluminium |
| D. | Zinc |
| Answer» D. Zinc | |
| 8. |
IN_HOT_CHAMBER_DIE_CASTING,_THE_PLUNGER_IS_ALSO_USED_FOR_TAKING_BACK_OF_UNUSED_MOLTEN_METAL_TO_THE_GOOSENECK_AFTER_THE_FULFILLING_OF_THE_CAVITY.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
The chances of defects in the castings by cold chamber die casting are more than the castings produced by hot chamber die casting.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Using of ladle in the cold chamber die casting has no affects on contact time between the molten metal and the shot chamber.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
In hot chamber die casting processes, downward motion of plunger in the gooseneck leads to injection of molten metal into the cavity with high pressure? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
In the hot chamber die casting process, which of the following parts is used for the pumping of liquid metal into the cavity? |
| A. | Accumulator |
| B. | Slug |
| C. | Guide pin |
| D. | Gooseneck |
| Answer» E. | |
| 13. |
In cold chamber die casting, rapid cooling of the castings is done as compared to the hot chamber die casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Which of the following ways of cooling is used for the maintaining of die temperature? |
| A. | Natural air cooling |
| B. | Forced air cooling |
| C. | Water channels cooling |
| D. | Liquid nitrogen cooling |
| Answer» D. Liquid nitrogen cooling | |
| 15. |
A single piece or unitary part of metallic die is used for making castings in die casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
Due to the presence of ejector die, there is no need of lubricant for the removal of casting from the dies. |
| A. | True |
| B. | False |
| Answer» C. | |
| 17. |
It is easy to produce any complex shapes and narrow sections in the die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 18. |
Which of the following considerations distinguish die casting from the permanent mould casting? |
| A. | Moulding material |
| B. | Way of pouring molten metal |
| C. | Coating on mould |
| D. | Size of castings |
| Answer» C. Coating on mould | |