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This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
1. |
In casting system, the riser is generally placed at the heaviest section to avoid defects from the casting. |
A. | True |
B. | False |
Answer» B. False | |
2. |
It is always desirable to have a large volume of molten metal in the riser to make casting products. |
A. | True |
B. | False |
Answer» C. | |
3. |
The allowable thermal gradient generally depends on the shape and size of a cross-section of the casting. |
A. | True |
B. | False |
Answer» B. False | |
4. |
The presence of chills in the mould does not have any affects on the riser mechanism. |
A. | True |
B. | False |
Answer» C. | |
5. |
IT_IS_ALWAYS_DESIRABLE_TO_HAVE_LARGE_VOLUME_OF_MOLTEN_METAL_IN_THE_RISER_TO_MAKE_CASTING_PRODUCTS.?$ |
A. | True |
B. | False |
Answer» C. | |
6. |
In_casting_system,_the_riser_is_generally_placed_at_the_heaviest_section_to_avoid_defects_from_the_casting.$ |
A. | True |
B. | False |
Answer» B. False | |
7. |
The allowable thermal gradient generally depends on the shape and size of cross-section of the casting? |
A. | True |
B. | False |
Answer» B. False | |
8. |
Which of the following formulas is used for the calculation of shape factor for complex casting in risering system? |
A. | (l – w)/h |
B. | (l<sup>2</sup> + w)/h |
C. | (l<sup>2</sup>– w)/h |
D. | (l + w)/h |
Answer» E. | |
9. |
A large size of riser should be placed on the casting system to compensate the solid shrinkage of the casting. |
A. | True |
B. | False |
Answer» C. | |
10. |
Placing of riser at the correct location is necessary to feed the melt to the desired locations within the casting. |
A. | True |
B. | False |
Answer» B. False | |
11. |
For a casting with a high area to volume (A/V) ratio, one central riser can be enough to feed the entire casting. |
A. | True |
B. | False |
Answer» C. | |
12. |
Which of the following equations defines the form of risering curve in the riser mechanism? |
A. | x = a*(y-b) + c |
B. | x = a/(y+b) + c |
C. | x = a/(y-b) + c |
D. | x = a*(y+b) + c |
Answer» D. x = a*(y+b) + c | |
13. |
For a single riser in the casting system, the chill should be placed at the ends of the riser. |
A. | True |
B. | False |
Answer» B. False | |
14. |
The presence of chills in the mould does not have any affects to the riser mechanism. |
A. | True |
B. | False |
Answer» C. | |