MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHICH_TYPE_OF_MONEL_ALLOY_IS_A_HARD-CASTING_GRADE??$ |
| A. | K Monel |
| B. | R Monel |
| C. | H Monel |
| D. | S Monel |
| Answer» D. S Monel | |
| 2. |
How_does_a_Monel_perform_compared_to_mild_steel?$ |
| A. | Brighter appearance |
| B. | Stronger and tougher |
| C. | Poor toughness |
| D. | Poor strength |
| Answer» C. Poor toughness | |
| 3. |
Addition of which element turns the Invar alloy into Elinvar alloy? |
| A. | Copper |
| B. | Tin |
| C. | Chromium |
| D. | Manganese |
| Answer» D. Manganese | |
| 4. |
What is a nickel-iron alloy, with 40-50% nickel, called? |
| A. | Invar |
| B. | Elinvar |
| C. | Constantan |
| D. | Monel |
| Answer» B. Elinvar | |
| 5. |
The melting point of nickel is _________ |
| A. | 327<sup>o</sup>C |
| B. | 650<sup>o</sup>C |
| C. | 1453<sup>o</sup>C |
| D. | 2730<sup>o</sup>C |
| Answer» D. 2730<sup>o</sup>C | |
| 6. |
Bearing metals are called Babbit metals on the addition of ________ |
| A. | Tin |
| B. | Arsenic |
| C. | Nickel |
| D. | Antimony |
| Answer» E. | |
| 7. |
Lead alloys containing _______ lead are used as bearing metals. |
| A. | 2-3% |
| B. | 8-10% |
| C. | 14-16% |
| D. | 17-20% |
| Answer» C. 14-16% | |
| 8. |
What is the appearance of lead? |
| A. | Bluish-grey |
| B. | Metallic-grey |
| C. | Red-orange |
| D. | Yellow |
| Answer» C. Red-orange | |
| 9. |
What is the melting point of lead? |
| A. | 327<sup>o</sup>C |
| B. | 419<sup>o</sup>C |
| C. | 1091<sup>o</sup>C |
| D. | 1749<sup>o</sup>C |
| Answer» B. 419<sup>o</sup>C | |
| 10. |
Which element is known as the softest heavy metal? |
| A. | Copper |
| B. | Lead |
| C. | Iron |
| D. | Nickel |
| Answer» C. Iron | |