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. |
In FCC metals, yield stress increases rapidly with decreasing temperature. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Tensile curve gets lower down with an increase in temperature. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Elastic modulus and strength ____ and ductility ___ as the temperature of material increases. |
| A. | Increases, increases |
| B. | Increases, decreases |
| C. | Decreases, increases |
| D. | Decreases, decreases |
| Answer» D. Decreases, decreases | |
| 4. |
At strain rates _____ behaviour of the material is characterized by creep. |
| A. | Low, 10<sup>4</sup> per second |
| B. | Low, 10<sup>-4</sup> per second |
| C. | High, 10<sup>4</sup> per second |
| D. | High, 10<sup>-4</sup> per second |
| Answer» C. High, 10<sup>4</sup> per second | |
| 5. |
Yield and flow strength at lower plastic strain is more dependent on _____ than ______ |
| A. | Strain rate, tensile strength |
| B. | Tensile strength, strain rate |
| C. | Strain rate, temperature |
| D. | Temperature, tensile strength |
| Answer» B. Tensile strength, strain rate | |
| 6. |
With increasing gauge length, % elongation _____ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | First increases then decrease |
| Answer» C. Remains constant | |