MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
Which of the following curve represents the ideal rigid material? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7a.png"><img alt="The following curve represents the ideal plastic material - option a" class="alignnone size-full wp-image-265433" height="199" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7a.png" width="213"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7b.png"><img alt="The following curve represents the ideal plastic material - option b" class="alignnone size-full wp-image-265432" height="194" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7b.png" width="215"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7c.png"><img alt="The following curve represents the ideal plastic material - option c" class="alignnone size-full wp-image-265431" height="193" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7c.png" width="212"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7d.png"><img alt="The following curve represents the ideal plastic material - option d" class="alignnone size-full wp-image-265430" height="146" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7d.png" width="193"/></a> |
| Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7b.png"><img alt="The following curve represents the ideal plastic material - option b" class="alignnone size-full wp-image-265432" height="194" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7b.png" width="215"/></a> | |
| 2. |
Which of the following curve represents the ideal plastic material? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7a.png"><img alt="The following curve represents the ideal plastic material - option a" class="alignnone size-full wp-image-265433" height="199" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7a.png" width="213"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7b.png"><img alt="The following curve represents the ideal plastic material - option b" class="alignnone size-full wp-image-265432" height="194" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7b.png" width="215"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7c.png"><img alt="The following curve represents the ideal plastic material - option c" class="alignnone size-full wp-image-265431" height="193" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7c.png" width="212"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7d.png"><img alt="The following curve represents the ideal plastic material - option d" class="alignnone size-full wp-image-265430" height="146" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7d.png" width="193"/></a> |
| Answer» D. <a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7d.png"><img alt="The following curve represents the ideal plastic material - option d" class="alignnone size-full wp-image-265430" height="146" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-flow-curve-q7d.png" width="193"/></a> | |
| 3. |
The most common form to express the flow curve is:
|
| A. | nHere =stress, =strain, n=strain hardening exponent, and K is defined as stress when = _______ |
| B. | 1 |
| C. | 0.5 |
| D. | 0 |
| E. | 0.33 |
| Answer» B. 1 | |
| 4. |
If the specimen is deformed plastically beyond the yield stress in one direction, e.g., tension and then after unloading it is loaded in the opposite direction, e.g., compression, it is found that the yield stress is less than the original yield stress. This dependence of yield stress on direction loading is called ____________ |
| A. | bauschinger effect |
| B. | strain hardening |
| C. | residual stress |
| D. | nabarro herring effect |
| Answer» B. strain hardening | |
| 5. |
In the stress-strain curve, loading and unloading of the material in the plastic region follow the same path. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
In the stress-strain curve, loading and unloading of the material in the elastic region follow the same path. |
| A. | True |
| B. | False |
| Answer» B. False | |