MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 5 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. |
Surface energy of the specimen increases when the crack lengthens. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The graph for Griffith s crack is ____________ |
| A. | An ellipse |
| B. | A circle |
| C. | A straight line |
| D. | A hyperbola |
| Answer» B. A circle | |
| 3. |
Which of the following statement is true regarding the toughness of a metal? |
| A. | Energy consumed is less in ductile fracture than brittle fracture |
| B. | Energy consumed is more in ductile fracture than brittle fracture |
| C. | Energy consumed in the brittle fracture is same as the ductile fracture |
| D. | Energy consumed is more in brittle fracture than ductile fracture |
| Answer» C. Energy consumed in the brittle fracture is same as the ductile fracture | |
| 4. |
Which of the following fracture mechanisms in which the crack propagates more rapidly? |
| A. | Ductile fracture |
| B. | Brittle fracture |
| C. | Fatigue |
| D. | It doesn t occur during fracture |
| Answer» C. Fatigue | |
| 5. |
Which of the following is associated with minimum plastic deformation? |
| A. | Ductile fracture |
| B. | Brittle fracture |
| C. | Fatigue |
| D. | It doesn t occur during fracture |
| Answer» C. Fatigue | |