MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Analysis of frictional concept at the interface is very important and necessary for the increase in casting speed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Due to mould oscillation to minimize friction, oscillation marks formed on the surface of casting does not affect the castings. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
To reduce the friction between the mould’s surface and casting, a refractory coating is done to the surface of mould. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
DUE_TO_MOULD_OSCILLATION_TO_MINIMIZE_FRICTION,_OSCILLATION_MARKS_FORMED_ON_THE_SURFACE_OF_CASTING_DOES_NOT_AFFECT_THE_CASTINGS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Analysis_of_frictional_concept_at_the_interface_is_very_important_and_necessary_for_the_increase_in_casting_speed.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following formulas is used for the determination of solid friction (fs) between the mould and casting during solidification? |
| A. | f<sub>s</sub> = η<sub>s</sub>-H |
| B. | f<sub>s</sub> = η<sub>s</sub>/H |
| C. | f<sub>s</sub> = η<sub>s</sub>+H |
| D. | f<sub>s</sub> = η<sub>s</sub>*H |
| Answer» E. | |
| 7. |
Lubrication at the interface is arises due to the infiltration of mould slag into the gap between the mould and casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
To reduce the friction between the mould’s surface and casting, a refractory coating is done to the surface of mould.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Minimization of friction between the mould and casting surface can reduce the chances of tearing of thin parts of the casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
In the continuous casting process, there is a strong possibility of breaking of casting parts at the initial stage of solidification. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Predominant resistance in mould of casting system generally produces castings of brittle nature. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Handling of very high heat flux can be possible in continuous casting technology. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
In continuous casting technology, solidification of casting starts in a thick sand mould of a closed structure. |
| A. | True |
| B. | False |
| Answer» C. | |