MCQOPTIONS
Saved Bookmarks
This section includes 5 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. |
Which element increases DBTT of steel? |
| A. | Ni |
| B. | Mn |
| C. | Al |
| D. | Mo |
| Answer» E. | |
| 2. |
What is aluminum responsible for in steel? |
| A. | Decrease notch toughness |
| B. | Deteriorate strength |
| C. | Lower oxygen content |
| D. | Increase growth strength |
| Answer» D. Increase growth strength | |
| 3. |
Which element decreases DBTT of steel? |
| A. | Ni |
| B. | Mn |
| C. | Al |
| D. | Mo |
| Answer» C. Al | |
| 4. |
Value of m will decrease if _________ |
| A. | Increase in number of unpinned dislocation sources |
| B. | Increase test temperature |
| C. | Increase crack velocity |
| D. | Blunting of crack |
| Answer» D. Blunting of crack | |
| 5. |
Above critical speed, what happens to the energy required to rupture a material when striking velocity increases? |
| A. | Increases slowly |
| B. | Increases rapidly |
| C. | Decreases slowly |
| D. | Decreases rapidly |
| Answer» E. | |