MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
The toughness of the composite depends on the toughness of the matrix. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Cast materials are tougher than wrought materials. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Material has tensile strength 40 MPa and fracture strain 0.39. What will be approximate value of toughness? |
| A. | 10.2 MJ/m<sup>3</sup> |
| B. | 15.6 MJ/m<sup>3</sup> |
| C. | 16.7 MJ/m<sup>3</sup> |
| D. | 18.9 MJ/m<sup>3</sup> |
| Answer» C. 16.7 MJ/m<sup>3</sup> | |
| 4. |
Stress intensity factor is not a function of _______ |
| A. | Loading |
| B. | Crack size |
| C. | Volume |
| D. | Structural geometry |
| Answer» D. Structural geometry | |
| 5. |
Which material, would you choose for high toughness property on lower temperatures? |
| A. | Steel |
| B. | Aluminium |
| C. | Zinc |
| D. | SiC |
| Answer» C. Zinc | |
| 6. |
What is the reason of low toughness of grey cast iron? |
| A. | Strain rate |
| B. | Notch effect |
| C. | Grain size effect |
| D. | Crystal structure |
| Answer» C. Grain size effect | |