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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. |
Permanent mould casting is suited to low volume production of moderate or complex shapes of casting. |
A. | True |
B. | False |
Answer» C. | |
2. |
In permanent mould casting, the mould is pre-heated to its operating temperature before the actual use of mould. |
A. | True |
B. | False |
Answer» B. False | |
3. |
In permanent mould casting, the temperature at which the mould is used does not depend on _____ |
A. | casting weight |
B. | casting wall thickness |
C. | pressure in casting |
D. | pouring temperature |
Answer» D. pouring temperature | |
4. |
The coating is applied thicker at surfaces, where the faster cooling rate is required. |
A. | True |
B. | False |
Answer» C. | |
5. |
IN_PERMANENT_MOULD_CASTING,_THE_TEMPERATURE_AT_WHICH_THE_MOULD_IS_USED_DOES_NOT_DEPEND_ON______?$ |
A. | casting weight |
B. | casting wall thickness |
C. | pressure in casting |
D. | pouring temperature |
Answer» D. pouring temperature | |
6. |
THE_COATING_IS_APPLIED_THICKER_AT_SURFACES,_WHERE_THE_FASTER_COOLING_RATE_IS_REQUIRED.?$ |
A. | True |
B. | False |
Answer» C. | |
7. |
Permanent mould casting is suited to low volume production of moderate or complex shapes of casting.$ |
A. | True |
B. | False |
Answer» C. | |
8. |
In permanent mould casting, the mould is pre-heated to its operating temperature before the actual use of mould.$ |
A. | True |
B. | False |
Answer» B. False | |
9. |
What should be the maximum desirable thickness of the coatings applied to the mould? |
A. | 0.8 mm |
B. | 2 mm |
C. | 5 mm |
D. | 10 mm |
Answer» B. 2 mm | |
10. |
Which of the following is not the function of coating of refractory materials on the mould? |
A. | Prevent the soldering of metal to the mould |
B. | Minimize thermal shock to the mould |
C. | Control the rate of casting solidification |
D. | Increase the heat transfer rate |
Answer» E. | |
11. |
It is desirable to have drafts or undercuts as much as possible in the mould cavity, to have greater strength of the castings. |
A. | True |
B. | False |
Answer» C. | |
12. |
Experiment with gating systems in sand casting is performed before the construction of gating systems for the metallic mould. |
A. | True |
B. | False |
Answer» B. False | |
13. |
Metallic core is more preferable than the sand core in the permanent mould casting. |
A. | True |
B. | False |
Answer» C. | |
14. |
For complicated shapes, it is better to use collapsible metal cores rather than a single metal core in the casting. |
A. | True |
B. | False |
Answer» B. False | |
15. |
In permanent mould casting, only the metallic type of cores can be used, as the mould material used is also metallic. |
A. | True |
B. | False |
Answer» C. | |
16. |
Which of the following is the main purpose of using permanent mould casting? |
A. | Variety in production |
B. | Production of castings with complexities |
C. | Large scale production |
D. | Production of highly expensive castings |
Answer» D. Production of highly expensive castings | |