MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Controlled unidirectional solidification of an alloy is a technique to increase creep resistance. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following doesn’t have high resistance to creep? |
| A. | Stainless steel |
| B. | Refractory metals |
| C. | Superalloys |
| D. | Magnesium |
| Answer» E. | |
| 3. |
Which of the following is not an alloy? |
| A. | Duralumin |
| B. | Bismuth |
| C. | Magnalium |
| D. | Alnico |
| Answer» C. Magnalium | |
| 4. |
Controlled unidirectional solidification of an alloy is a technique to increase creep resistance? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following is created by directional solidification? |
| A. | Single crystal components |
| B. | Polycrystalline components |
| C. | Short grains |
| D. | Elongated grains |
| Answer» B. Polycrystalline components | |
| 6. |
Which of the following does not enhance the creep resistance of an alloy? |
| A. | Solid-solution alloying |
| B. | Addition of a dispersed phase |
| C. | directional solidification |
| D. | Heat treatment |
| Answer» D. Heat treatment | |
| 7. |
Which of the following high resistance to creep? |
| A. | Stainless steel |
| B. | Refractory metals |
| C. | Superalloys |
| D. | Magnesium |
| Answer» E. | |
| 8. |
Which of the relationship holds? |
| A. | Higher the melting temperature greater is the elastic modulus |
| B. | Lower the melting temperature greater is the elastic modulus |
| C. | Higher the melting temperature smaller is the elastic modulus |
| D. | There is no relationship between the melting temperature and elastic modulus |
| Answer» B. Lower the melting temperature greater is the elastic modulus | |
| 9. |
Alloys resistant to creep have a high modulus of elasticity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Which of the following is a high temperature alloy resistant to? |
| A. | Tensile compression |
| B. | Tensile elongation |
| C. | Creep |
| D. | Fatigue |
| Answer» D. Fatigue | |
| 11. |
Which of the following is an alloy? |
| A. | Duralumin |
| B. | Bismuth |
| C. | Magnalium |
| D. | Alnico |
| Answer» C. Magnalium | |