MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Directional solidification always ends at the sprue part and starts from the end of the casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
In the process of directional solidification, weight always remains constant for all the materials. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following methods is used for the cutting of directionally solidified rods or castings? |
| A. | Thermal cutting |
| B. | Electro-discharge machining |
| C. | Water jet cutting |
| D. | Weld cutting |
| Answer» C. Water jet cutting | |
| 4. |
To achieve useful strength of the material at temperatures of 1000-1600 ⁰C, what should be the melting point temperature of the material? |
| A. | 1000 ⁰C |
| B. | 1300 ⁰C |
| C. | 1600 ⁰C |
| D. | More than 1600 ⁰C |
| Answer» E. | |
| 5. |
It is not easy to control the material at the microstructure level in the directional solidification. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
WHICH_OF_THE_FOLLOWING_METHODS_IS_USED_FOR_THE_CUTTING_OF_DIRECTIONALLY_SOLIDIFIED_RODS_OR_CASTINGS??$ |
| A. | Thermal cutting |
| B. | Electro-discharge machining |
| C. | Water jet cutting |
| D. | Weld cutting |
| Answer» C. Water jet cutting | |
| 7. |
Directional solidification always ends at the sprue part and starts from the end of the casting$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
In_the_process_of_directional_solidification,_weight_always_remains_constant_for_all_the_materials.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Progressive solidification is better than the directional solidification and it is independent to the geometry of mould. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following furnaces is used for the directional solidification of cast ingots of eutectic? |
| A. | Pneumatic zone furnace |
| B. | Cupola furnace |
| C. | Hydraulic zone furnace |
| D. | Optical floating zone furnace |
| Answer» E. | |
| 11. |
Which of the following shows the relationship between the growth rate and inter-phase spacing? |
| A. | λ<sup>2</sup>R = constant |
| B. | λR<sup>2</sup> = constant |
| C. | λ/R = constant |
| D. | λ⁴R = constant |
| Answer» B. ‚âà√≠¬¨‚Ñ¢R<sup>2</sup> = constant | |
| 12. |
To achieve useful strength of the material at temperatures of 1000-1600 ‚Äö√Ö‚àûC, what should be the melting point temperature of the material?$ |
| A. | 1000 ‚Äö√Ö‚àûC |
| B. | 1300 ‚Äö√Ö‚àûC |
| C. | 1600 ‚Äö√Ö‚àûC |
| D. | More than 1600 ‚Äö√Ö‚àûC |
| Answer» E. | |
| 13. |
Oxidation resistance should be the prime requirement for the high temperature structural applications. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
It is not possible to replace super-alloys by the directionally solidified high temperature eutectics. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
It is not easy to control the material at microstructure level in the directional solidification. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
Directional solidification allows components to be produced from the melt in a single stage process. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
Which of the following materials has superior strength and rigidity at high elevated temperature? |
| A. | Aluminium-based alloys |
| B. | Copper-based alloys |
| C. | Zinc-based alloys |
| D. | Nickel-based alloys |
| Answer» E. | |