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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. | |