MCQOPTIONS
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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. | |