MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In an isothermal curve, which of the following is true when the temperature is increased? |
| A. | The curve shifts rightward |
| B. | The curve shifts leftward |
| C. | The curve goes down |
| D. | The curve goes up |
| Answer» B. The curve shifts leftward | |
| 2. |
To construct a TTT diagram, the specimen of steels is heated and then cooled. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following phase will be resulted when the transformation temperature of steel is in the range of 100 °C to 300 °C? |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» E. | |
| 4. |
Which of the following phase will be resulted when the transformation temperature of steel is in the range of 300 °C to 550 °C? |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» D. Martensite | |
| 5. |
Which of the following phase will be resulted when the transformation temperature of steel is in the range of 500 °C to 750 °C? |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» C. Bainite | |
| 6. |
Which of the following phase will be resulted when the transformation temperature of steel is more than 750 °C? |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» B. Pearlite | |
| 7. |
In_an_isothermal_curve,_which_of_the_following_is_true_when_the_temperature_is_increased?$ |
| A. | The curve shifts rightward |
| B. | The curve shifts leftward |
| C. | The curve goes down |
| D. | The curve goes up |
| Answer» B. The curve shifts leftward | |
| 8. |
Which of the following is the hardest? |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» E. | |
| 9. |
What material is present in steel at a temperature between 550 °C and 750°C?$ |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» C. Bainite | |
| 10. |
What material is present in steel at a temperature above 750°C?$ |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» B. Pearlite | |
| 11. |
Steel with different carbon content shows different time temperature transformation diagrams. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Which of the following is not a name for time temperature transformation diagrams? |
| A. | S curve |
| B. | C curve isothermal diagram |
| C. | D curve isothermal diagram |
| D. | Bain’s curve |
| Answer» D. Bain‚Äö√Ñ√∂‚àö√ë‚àö¬•s curve | |
| 13. |
Time temperature transformation diagrams are drawn for ______________ |
| A. | Iron |
| B. | Manganese |
| C. | Any alloy |
| D. | Only steel |
| Answer» E. | |