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. |
Titanium alloys can be used up to 1000 C. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which material can t be used above 1000 C? |
| A. | W |
| B. | Pb |
| C. | Mo |
| D. | Nb |
| Answer» C. Mo | |
| 3. |
In the alloy Incoloy 901, part of the iron is replaced by _________ to improve high temperature stability. |
| A. | Co |
| B. | Ni |
| C. | Mo |
| D. | Al |
| Answer» C. Mo | |
| 4. |
What is the largest use for superalloys? |
| A. | Refrigeration |
| B. | Bullets |
| C. | Transportation |
| D. | Gas turbines |
| Answer» E. | |
| 5. |
Protective action against corrosion is provided by _________ |
| A. | CO<sub>2</sub> |
| B. | Cl<sub>2</sub> |
| C. | Cr<sub>2</sub>O<sub>3</sub> |
| D. | ZnO |
| Answer» D. ZnO | |
| 6. |
Which of the following is a superalloy category? |
| A. | Lead-base |
| B. | Tin-base |
| C. | Zinc-base |
| D. | Cobalt-base |
| Answer» E. | |
| 7. |
Ferritic steels are susceptible to 475 C embrittlement when chromium exceeds _________ |
| A. | 2% |
| B. | 5% |
| C. | 13% |
| D. | 15% |
| Answer» D. 15% | |