MCQOPTIONS
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MCQOPTIONS
This section includes 4 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. |
Fracture stress decreases as fiber diameter decreases. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
For polymers close to glass transition temperature which of the following can be a value of G? |
| A. | 1 J/m<sup>2</sup> |
| B. | 900 J/m<sup>2</sup> |
| C. | 1200 J/m<sup>2</sup> |
| D. | 1400 J/m<sup>2</sup> |
| Answer» C. 1200 J/m<sup>2</sup> | |
| 3. |
What is the unit of G from Griffith s energy criterion? |
| A. | J-m<sup>2</sup> |
| B. | J-m |
| C. | J/m<sup>2</sup> |
| D. | J/m |
| Answer» D. J/m | |
| 4. |
Which of the following scientist proposed a modification to Griffith s theory? |
| A. | G. R. Irwin |
| B. | Albert Einstein |
| C. | Isaac Newton |
| D. | There was no modification proposed. |
| Answer» B. Albert Einstein | |