MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
Fatigue initiation only occurs in slip planes in FCC metals. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following material fails by both hysteric heating and crack propagation? |
| A. | Nylon |
| B. | Polyethylene |
| C. | Propylene |
| D. | PMMA |
| Answer» E. | |
| 3. |
Which of the following materials is predominated by thermal failure? |
| A. | PMMA |
| B. | Actual |
| C. | Nylon |
| D. | Polycarbonate |
| Answer» D. Polycarbonate | |
| 4. |
Material with a high surface to volume ratio have _________ fatigue life. |
| A. | Very low fatigue life |
| B. | Very high fatigue life |
| C. | Lower fatigue life |
| D. | Improved fatigue life |
| Answer» E. | |
| 5. |
Stage of crack growth is called _________ |
| A. | I stage |
| B. | II stage |
| C. | III stage |
| D. | IV stage |
| Answer» C. III stage | |
| 6. |
Wood s theory is described by _________ |
| A. | Microscopic voids |
| B. | Microscopic slip bands |
| C. | Weak crystal |
| D. | Grain boundaries |
| Answer» C. Weak crystal | |
| 7. |
Orowan s theory is related to _________ |
| A. | Grain boundaries |
| B. | Weak crystal |
| C. | Slip band |
| D. | Gas pores |
| Answer» C. Slip band | |