MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Behaviour knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
At elevated temperatures, single phase materials are preferred. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Finer the spheroid second phase particles, better are the mechanical properties. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which one is structure insensitive property? |
| A. | Fracture strength |
| B. | Yield strength |
| C. | Elastic modulus |
| D. | Electrical conductivity |
| Answer» D. Electrical conductivity | |
| 4. |
Which one is structure sensitive property? |
| A. | Melting point |
| B. | Density |
| C. | Specific heat |
| D. | Ductility |
| Answer» E. | |
| 5. |
Which property is measured to decide the density of point defects? |
| A. | Electrical resistivity |
| B. | Fatigue strength |
| C. | Malleability |
| D. | Toughness |
| Answer» B. Fatigue strength | |
| 6. |
Which property deteriorates with a decrease in grain size? |
| A. | Ductility |
| B. | Tensile strength |
| C. | Fatigue |
| D. | Creep |
| Answer» E. | |
| 7. |
Single phase alloys have better _____ properties than their respective pure metals. |
| A. | Electrical |
| B. | Thermal |
| C. | Mechanical |
| D. | Formability |
| Answer» D. Formability | |
| 8. |
Which shape of second phase particles is preferred? |
| A. | Flakes |
| B. | Nodules |
| C. | Spheroids |
| D. | Plates |
| Answer» D. Plates | |
| 9. |
Which microstructure possesses the best combination of ductility and toughness? |
| A. | Second phase along grain boundaries |
| B. | Second phase at grain boundaries |
| C. | Second phase within the matrix |
| D. | Second phase uniformly distributed throughout matrix |
| Answer» E. | |
| 10. |
Second phase present as a continuous network at grain boundaries, gives ___________ |
| A. | Ductility |
| B. | Toughness |
| C. | Brittleness |
| D. | Corrosion resistance |
| Answer» D. Corrosion resistance | |
| 11. |
Mechanical properties of single phase alloys cannot be improved by ____________ |
| A. | Cold working |
| B. | Thermomechanical treatment |
| C. | Heat treatment |
| D. | Grain refining |
| Answer» D. Grain refining | |