MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Short cycle time leads to having a high temperature of the dies in the vacuum die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Overflows should be avoided as much as possible in the designing of a die. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following is used to remove the metal defect of cold shuts from the casting? |
| A. | Ejector pins |
| B. | Overflows |
| C. | Metal cores |
| D. | Biscuit/Sprue |
| Answer» C. Metal cores | |
| 4. |
The moving cores are used in the vacuum die casting, which are parallel to the movement of a die. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
WHICH_OF_THE_FOLLOWING_IS_USED_TO_REMOVE_THE_METAL_DEFECT_OF_COLD_SHUTS_FROM_THE_CASTING??$ |
| A. | Ejector pins |
| B. | Overflows |
| C. | Metal cores |
| D. | Biscuit/Sprue |
| Answer» C. Metal cores | |
| 6. |
Short cycle time leads to having a high temperature of the dies in the vacuum die casting.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Overflows should be avoided as much as possible in the designing of die.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following parts is fixed to the stationary platen of the casting machine? |
| A. | Cover die |
| B. | Ejector die |
| C. | Sprue |
| D. | Runner |
| Answer» B. Ejector die | |
| 9. |
The moving cores are used in the vacuum die casting, which are parallel to the movement of die. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following helps in removing of casting from the ejector die? |
| A. | Tie bar |
| B. | Plunger |
| C. | Platen |
| D. | Ejector pins |
| Answer» E. | |
| 11. |
Rapid solidification rates of casting tend to have a reduction in oxidation of the material. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Which of the following helps in reducing the oxidation of the material in vacuum die casting? |
| A. | Mould thickness |
| B. | Mould material |
| C. | Tight tolerances |
| D. | Mould coating |
| Answer» D. Mould coating | |
| 13. |
The castings made by vacuum die casting have more strength than the castings made by die casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
In vacuum die casting, the molten metal enters into the cavity slowly as compared to the die casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
In vacuum die casting, the molten metal does not experience any back pressure while injecting it into the die cavity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Which of the following problems arises in die casting that can be solved by having vacuum die casting? |
| A. | Overheating |
| B. | Interruption in progressive solidification |
| C. | Air in the cavity |
| D. | Difficulty in cooling of casting |
| Answer» D. Difficulty in cooling of casting | |