MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which among the following exhibits the highest thermal conductivity? |
| A. | Alumina |
| B. | Silicon carbide |
| C. | Silicon nitride |
| D. | Sialon |
| Answer» C. Silicon nitride | |
| 2. |
What is the tensile strength of aluminum oxide? |
| A. | 175 MPa |
| B. | 210 MPa |
| C. | 415 MPa |
| D. | 550 MPa |
| Answer» C. 415 MPa | |
| 3. |
Which of the following is a characteristic of alumina? |
| A. | Excellent hardness |
| B. | Good tensile strength |
| C. | Good toughness |
| D. | Poor wear resistance |
| Answer» B. Good tensile strength | |
| 4. |
Which class of engineering ceramics generally includes lubricant materials? |
| A. | Sulphides |
| B. | Carbides |
| C. | Metalloids |
| D. | Intermetallics |
| Answer» B. Carbides | |
| 5. |
Which of the following carbides are used for cutting tools? |
| A. | Silicon carbide |
| B. | Tungsten carbide |
| C. | Vanadium carbide |
| D. | Chromium carbide |
| Answer» C. Vanadium carbide | |
| 6. |
Which material is commonly used in electronic devices? |
| A. | Alumina |
| B. | Titania |
| C. | Silica |
| D. | Germanium |
| Answer» E. | |
| 7. |
Which of the following is not a step in making ceramics? |
| A. | Powder pressing |
| B. | Sintering |
| C. | Alloying |
| D. | Vitrification |
| Answer» D. Vitrification | |
| 8. |
Diamond and corundum are examples of _____ ceramics. |
| A. | glass |
| B. | stone |
| C. | refractories |
| D. | abrasives |
| Answer» E. | |
| 9. |
Porcelain is a type of ______ ceramic. |
| A. | whiteware |
| B. | stone |
| C. | abrasive |
| D. | cement |
| Answer» B. stone | |
| 10. |
Which of the following is a property of ceramics? |
| A. | Low strength |
| B. | Low melting point |
| C. | Resistant to corrosion |
| D. | Bad insulation |
| Answer» D. Bad insulation | |