MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Forming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Cementite is a brittle material. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the percentage weight of carbon in cementite? |
| A. | 5.53% |
| B. | 6.67% |
| C. | 7.23% |
| D. | 8.39% |
| Answer» C. 7.23% | |
| 3. |
How much is the Brinell hardness of troostite? |
| A. | 250 |
| B. | 350 |
| C. | 450 |
| D. | 550 |
| Answer» D. 550 | |
| 4. |
WHAT_IS_THE_PERCENTAGE_WEIGHT_OF_CARBON_IN_CEMENTITE??$ |
| A. | 5.53% |
| B. | 6.67% |
| C. | 7.23% |
| D. | 8.39% |
| Answer» C. 7.23% | |
| 5. |
Cementite_is_a_brittle_material.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
What is the percentage weight of iron in cementite? |
| A. | 93.3% |
| B. | 94.3% |
| C. | 95.3% |
| D. | 96.3% |
| Answer» B. 94.3% | |
| 7. |
What is the curie temperature of cementite? |
| A. | 480K |
| B. | 500K |
| C. | 520K |
| D. | 540K |
| Answer» B. 500K | |
| 8. |
What is the crystal structure of cementite? |
| A. | Orthogonal |
| B. | Pyramidal |
| C. | Trapeziodal |
| D. | Orthorhombic |
| Answer» E. | |
| 9. |
What is the chemical formula of cementite? |
| A. | Fe<sub>3</sub>O<sub>4</sub> |
| B. | Fe<sub>2</sub>O<sub>3</sub> |
| C. | Fe<sub>3</sub>C |
| D. | FeSO<sub>4</sub> |
| Answer» D. FeSO<sub>4</sub> | |
| 10. |
How much is the Brinell hardness of sorbite? |
| A. | 250 |
| B. | 350 |
| C. | 450 |
| D. | 550 |
| Answer» C. 450 | |
| 11. |
On martensite formation, what is the percentage increase in the volume of the steel? |
| A. | 3% |
| B. | 13% |
| C. | 23% |
| D. | 33% |
| Answer» B. 13% | |
| 12. |
Which of the following processes is called as quenching? |
| A. | Slow cooling |
| B. | Slow heating |
| C. | Rapid cooling |
| D. | Rapid heating |
| Answer» D. Rapid heating | |