MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials and Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The ability of a material to exist in more than one crystal structure is known as _______ |
| A. | Polymorphism |
| B. | Allotropy |
| C. | Polyhedral phase |
| D. | Lattice |
| Answer» B. Allotropy | |
| 2. |
Quartz and Feldspar are examples having ______ structure |
| A. | Tetrahedron |
| B. | Sheet |
| C. | Poly tetrahedral |
| D. | Framework |
| Answer» E. | |
| 3. |
Conversion of a tetrahedral unit into a three-dimensional structure gives a ______ structure. |
| A. | Vitreous |
| B. | Sheet |
| C. | Chain |
| D. | Framework |
| Answer» E. | |
| 4. |
Which of the following structures can be seen for the vitreous form of glass? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3a.png"><img alt="The following structures can be seen for the vitreous form of glass - option a" class="alignnone size-full wp-image-200518" height="217" sizes="(max-width: 335px) 100vw, 335px" src="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3a.png 335w, https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3a-300x194.png 300w" width="335"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3b.png"><img alt="The following structures can be seen for the vitreous form of glass - option b" class="alignnone size-full wp-image-200519" height="335" sizes="(max-width: 326px) 100vw, 326px" src="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3b.png 326w, https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3b-292x300.png 292w" width="326"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c.png"><img alt="The following structures can be seen for the vitreous form of glass - option c" class="alignnone size-full wp-image-200520" height="337" sizes="(max-width: 324px) 100vw, 324px" src="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c.png 324w, https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c-288x300.png 288w" width="324"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3d.png"><img alt="The following structures can be seen for the vitreous form of glass - option d" class="alignnone size-full wp-image-200521" height="232" sizes="(max-width: 232px) 100vw, 232px" src="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3d.png 232w, https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3d-150x150.png 150w" width="232"/></a> |
| Answer» C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c.png"><img alt="The following structures can be seen for the vitreous form of glass - option c" class="alignnone size-full wp-image-200520" height="337" sizes="(max-width: 324px) 100vw, 324px" src="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c.png 324w, https://www.sanfoundry.com/wp-content/uploads/2018/01/engineering-materials-metallurgy-questions-answers-silicate-structures-polymorphism-q3c-288x300.png 288w" width="324"/></a> | |
| 5. |
What is the composition of a double tetrahedral structure? |
| A. | SiO<sub>4</sub> |
| B. | Si<sub>2</sub>O<sub>7</sub> |
| C. | Si<sub>3</sub>O<sub>9</sub> |
| D. | Si<sub>5</sub>O<sub>9</sub> |
| Answer» C. Si<sub>3</sub>O<sub>9</sub> | |
| 6. |
The polishing of cast iron and finishing of stainless steels are applications of ______ |
| A. | Silicon carbide |
| B. | Boron carbide |
| C. | Tungsten carbide |
| D. | Aluminum oxide |
| Answer» E. | |
| 7. |
Which of the following is regarded as a modern abrasive? |
| A. | Tripoli |
| B. | Silicon carbide |
| C. | Pumica |
| D. | Boron carbide |
| Answer» E. | |
| 8. |
Which abrasive has a common trade name as carborundum? |
| A. | Aluminum oxide |
| B. | Silicon carbide |
| C. | Tungsten carbide |
| D. | Boron carbide |
| Answer» C. Tungsten carbide | |
| 9. |
A high-temperature electric arc of _____ is used for the manufacture of silicon carbide. |
| A. | 1500<sup>o</sup>F |
| B. | 3000<sup>o</sup>F |
| C. | 4500<sup>o</sup>F |
| D. | 7500<sup>o</sup>F |
| Answer» D. 7500<sup>o</sup>F | |
| 10. |
Silicic acid deposits are used to form _____ |
| A. | Quartz |
| B. | Emery |
| C. | Tripoli |
| D. | Diamond |
| Answer» D. Diamond | |
| 11. |
Sandpaper is a common application of ______ abrasives. |
| A. | Garnet and flint |
| B. | Rottenstone and pumica |
| C. | Walnut shells |
| D. | Silicon carbide |
| Answer» B. Rottenstone and pumica | |
| 12. |
What is a common application of diamond? |
| A. | Drilling of rocks |
| B. | Sandpaper |
| C. | Wood finishing |
| D. | Polishing of metals |
| Answer» B. Sandpaper | |