MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
What is the value of residual induction of alnico alloys? |
| A. | 0.9 |
| B. | 0.95 |
| C. | 1.0 |
| D. | 0.8-1.2 |
| Answer» D. 0.8-1.2 | |
| 2. |
What is the coercive force of high carbon steel? |
| A. | 3.98 |
| B. | 5.57 |
| C. | 18.31 |
| D. | 60 |
| Answer» B. 5.57 | |
| 3. |
Yttrium-iron-garnet is used as microwave isolators in the ____ range. |
| A. | KHz |
| B. | MHz |
| C. | GHz |
| D. | THz |
| Answer» D. THz | |
| 4. |
Which of the following is not a use of magnesium-manganese ferrites? |
| A. | Microwave isolator |
| B. | Gyrators |
| C. | Wires |
| D. | Memory core of computer |
| Answer» D. Memory core of computer | |
| 5. |
A _____ cooling rate solidifies metallic glass made from iron- base alloys. |
| A. | 10<sup>o</sup>C s<sup>-1</sup> |
| B. | 100<sup>o</sup>C s<sup>-1</sup> |
| C. | 1000<sup>o</sup>C s<sup>-1</sup> |
| D. | 10000<sup>o</sup>C s<sup>-1</sup> |
| Answer» E. | |
| 6. |
Which of the following is an example of soft magnetic material? |
| A. | Permalloy |
| B. | Strontium |
| C. | Alnico |
| D. | Neodymium |
| Answer» B. Strontium | |