MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The creep rate determination will be most critical for which component? |
| A. | Train wheel |
| B. | Steam turbine |
| C. | Mega steel structure |
| D. | Car body |
| Answer» C. Mega steel structure | |
| 2. |
If the temperature of the material is higher, the creep rate will also be _____________ |
| A. | higher |
| B. | lower |
| C. | independent of temperature |
| D. | sometimes higher sometimes lower |
| Answer» B. lower | |
| 3. |
Which state of the creep curve state is associated with the metallurgical changes in the material? |
| A. | Primary |
| B. | Secondary |
| C. | Tertiary |
| D. | No stage |
| Answer» D. No stage | |
| 4. |
The tertiary state of the creep rate increases with time. It occurs in every case and has increasing creep rate. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The steady-state creep (secondary state) has constant creep due to the competing result of the strain hardening and recovery. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which state of the creep curve state represents the constant creep rate? |
| A. | Primary |
| B. | Secondary |
| C. | Ternary |
| D. | No stage |
| Answer» C. Ternary | |
| 7. |
The primary state of the creep curve represents the ___________ creep rate in the strain vs. time curve. |
| A. | increasing |
| B. | decreasing |
| C. | constant |
| D. | fluctuating |
| Answer» C. constant | |