MCQOPTIONS
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MCQOPTIONS
This section includes 16 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 fatigue ductility exponent x is always positive. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
A smaller value of x results in _________ value of fatigue life. |
| A. | Smaller |
| B. | Larger |
| C. | Constant |
| D. | Zero |
| Answer» C. Constant | |
| 3. |
Which law can predict the fatigue life in low cycle fatigue conditions? |
| A. | Paris-Erodogan |
| B. | Wood’s law |
| C. | Orowan’s law |
| D. | Coffin-Manson law |
| Answer» E. | |
| 4. |
For what purpose low cycle fatigue is an important consideration? |
| A. | Subzero systems |
| B. | High temperature systems |
| C. | High load systems |
| D. | Wet systems |
| Answer» C. High load systems | |
| 5. |
Low cycle fatigue conditions are frequently created where the cyclic stresses are of ________ origin. |
| A. | Kinetic |
| B. | Impact |
| C. | Thermal |
| D. | Compressive |
| Answer» D. Compressive | |
| 6. |
What term is used for fatigue that occurs with less than 104 or 105 cycles? |
| A. | High cycle fatigue |
| B. | Low cycle fatigue |
| C. | Fatigue limit |
| D. | Stage II fatigue |
| Answer» C. Fatigue limit | |
| 7. |
THE_FATIGUE_DUCTILITY_EXPONENT_X_IS_ALWAYS_POSITIVE.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
The_fatigue_ductility_exponent_x_is_always_positive.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
A smaller value of x results in _________ value of fatigue life? |
| A. | Smaller |
| B. | Larger |
| C. | Constant |
| D. | Zero |
| Answer» C. Constant | |
| 10. |
A log-log plot between the plastic strain range against the number of fatigue cycles yields ____________ |
| A. | Straight line |
| B. | Parabola |
| C. | Elliptical |
| D. | Exponential |
| Answer» B. Parabola | |
| 11. |
Which law can predict the fatigue life in LCF conditions? |
| A. | Paris-Erodogan |
| B. | Wood’s law |
| C. | Orowan’s law |
| D. | Coffin-Manson law |
| Answer» E. | |
| 12. |
For what purpose LCF is an important consideration? |
| A. | Subzero systems |
| B. | High temperature systems |
| C. | High load systems |
| D. | Wet systems |
| Answer» C. High load systems | |
| 13. |
LCF conditions are frequently created where the cyclic stresses are of ________ origin. |
| A. | Kinetic |
| B. | Impact |
| C. | Thermal |
| D. | Compressive |
| Answer» D. Compressive | |
| 14. |
What is the limit for low cycle fatigue? |
| A. | 10<sup>0</sup> cycles |
| B. | 10<sup>3</sup> cycles |
| C. | 10<sup>4</sup> cycles |
| D. | 10<sup>10</sup> cycles |
| Answer» D. 10<sup>10</sup> cycles | |
| 15. |
What term is used for a fatigue occurs with less than about 104 or 105 cycles? |
| A. | High cycle fatigue |
| B. | Low cycle fatigue |
| C. | Fatigue limit |
| D. | Stage II fatigue |
| Answer» C. Fatigue limit | |
| 16. |
By decreasing the number of cycles, the allowable stress ________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | First Increases then decreases |
| Answer» B. Decreases | |