MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials and Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Transformation of hypoeutectic cast iron is applicable for the composition of cast iron of ________ carbon. |
| A. | 2.0-4.3% |
| B. | 4.3% |
| C. | 4.3-5.0% |
| D. | Over 5% |
| Answer» B. 4.3% | |
| 2. |
Heating of 4.8% cast iron at _______ results in the formation of liquid metal. |
| A. | 450<sup>o</sup>C |
| B. | 650<sup>o</sup>C |
| C. | 950<sup>o</sup>C |
| D. | 1450<sup>o</sup>C |
| Answer» E. | |
| 3. |
Cooling of austenite of eutectoid composition at 723oC results in formation of ________ |
| A. | Ledeburite |
| B. | Sphereoidite |
| C. | Pearlite |
| D. | Bainite |
| Answer» D. Bainite | |
| 4. |
A mixture of austenite and cementite is called ___________ |
| A. | Ferrite |
| B. | Ledeburite |
| C. | Pearlite |
| D. | Bainite |
| Answer» C. Pearlite | |