MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
Which of the following is found out by calculating the area under the stress strain graph? |
| A. | Toughness |
| B. | Hardness |
| C. | Endurance |
| D. | Strength |
| Answer» B. Hardness | |
| 2. |
Greater the angle of inclination of the stress strain curve less is the elasticity. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Stress strain curve for cemented tungsten carbide is: |
| A. | Hyperbola |
| B. | Parabola |
| C. | A curve |
| D. | Straight line |
| Answer» E. | |
| 4. |
If the Poisson s ratio is given as 0.3 and the Young s modulus is given to 7e10. What will be the value for shear modulus? |
| A. | 2.69e<sup>10</sup> N/m<sup>2</sup> |
| B. | 3.00e<sup>10</sup> N/m<sup>2</sup> |
| C. | 2.59e<sup>10</sup> N/m<sup>2</sup> |
| D. | 2.72e<sup>10</sup> N/m<sup>2</sup> |
| Answer» B. 3.00e<sup>10</sup> N/m<sup>2</sup> | |
| 5. |
Which of the following can be the value of Poisson s ratio for an engineering structure? |
| A. | 2 |
| B. | 0.4 |
| C. | 29 |
| D. | 100 |
| Answer» C. 29 | |
| 6. |
Which of the following relation is stated by Hooke s law? |
| A. | Stress is directly proportional to strain |
| B. | Stress is inversely proportional to strain |
| C. | Stress is directly proportional to square of strain |
| D. | Stress is inversely proportional to square of strain |
| Answer» B. Stress is inversely proportional to strain | |
| 7. |
Up to which point on the stress-strain curve is Hooke s law valid? |
| A. | Elastic limit |
| B. | Yield point |
| C. | Proportionality limit |
| D. | Fracture point |
| Answer» D. Fracture point | |