MCQOPTIONS
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MCQOPTIONS
This section includes 18 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 most common creep rate corresponds to which the creep strength is specified is _________ |
| A. | 1% in 100 hrs |
| B. | 1% in 1000 hrs |
| C. | 1% in 10,000 hrs |
| D. | 1% in 100,000 hrs |
| Answer» D. 1% in 100,000 hrs | |
| 2. |
k represents elongation per unit length at a constant rate. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Andrade’s equation is only applicable to metals. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Transient creep is also known as _________ flow. |
| A. | k |
| B. | β |
| C. | ε |
| D. | t |
| Answer» C. ε | |
| 5. |
Viscous creep is represented by _________ constant in Andrade empirical equation. |
| A. | β |
| B. | k |
| C. | ε |
| D. | t |
| Answer» C. ε | |
| 6. |
Second stage of creep is also known as ___________ creep. |
| A. | Primary |
| B. | Secondary |
| C. | Transient |
| D. | Viscous |
| Answer» E. | |
| 7. |
Which metal is capable of maintaining its mechanical strength at a working temperature greater than 300 °C? |
| A. | Pb |
| B. | Zn |
| C. | Fe |
| D. | Sn |
| Answer» D. Sn | |
| 8. |
TRANSIENT_CREEP_IS_ALSO_KNOWN_AS___________FLOW.?$ |
| A. | k |
| B. | β |
| C. | ε |
| D. | t |
| Answer» C. ‚âà√≠¬¨¬µ | |
| 9. |
k represents elongation per unit length at a constant rate.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Andrade’s_equation_is_only_applicable_to_metals.$# |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
The_most_common_creep_rate_corresponds_to_which_the_creep_strength_is_specified_is__________ |
| A. | 1% in 100 hrs |
| B. | 1% in 1000 hrs |
| C. | 1% in 10,000 hrs |
| D. | 1% in 100,000 hrs |
| Answer» D. 1% in 100,000 hrs | |
| 12. |
Viscous creep is represented by _________ constant in Andrade empirical equation? |
| A. | β |
| B. | k |
| C. | ε |
| D. | t |
| Answer» C. ‚âà√≠¬¨¬µ | |
| 13. |
The first stage of creep is also known as ___________ creep. |
| A. | Transient |
| B. | Viscous |
| C. | Flow |
| D. | Tertiary |
| Answer» B. Viscous | |
| 14. |
Stress rupture curves show the variation in stress as a function of ___________ |
| A. | Temperature |
| B. | Time |
| C. | Cycles |
| D. | Notch depth |
| Answer» C. Cycles | |
| 15. |
Softening process dominates over hardening process in ___________ stage of creep. |
| A. | Primary |
| B. | Secondary |
| C. | Tertiary |
| D. | Quaternary |
| Answer» D. Quaternary | |
| 16. |
With increases in temperature, yield strength __________ and tensile strength ___________ |
| A. | Increases, increases |
| B. | Increases, decreases |
| C. | Decreases, increases |
| D. | Decreases, decreases |
| Answer» E. | |
| 17. |
With an increase in temperature, the modulus of elasticity ____________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | First Increases, then decreases |
| Answer» C. Remains constant | |
| 18. |
Which metal is capable of maintaining its mechanical strength on working temperature? |
| A. | Pb |
| B. | Zn |
| C. | Fe |
| D. | Sn |
| Answer» D. Sn | |