MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Powder Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What should be amount of tin in copper-lead alloy containing 25% lead for production of non-porous bearing? |
| A. | 14 20wt% |
| B. | 4 10wt% |
| C. | 1 5wt% |
| D. | 11 15wt% |
| Answer» C. 1 5wt% | |
| 2. |
Lower lead content in copper-lead alloy is undesirable. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following powder production method is used for the production of non-porous bearing with steel backing? |
| A. | Mechanical alloying |
| B. | Gas atomization |
| C. | Water atomization |
| D. | Electrolysis |
| Answer» C. Water atomization | |
| 4. |
Which of the following bearing doesn t belong to the class of non-porous bearing with steel backing? |
| A. | Copper-antimony alloy |
| B. | Aluminum based alloy |
| C. | Copper based alloy |
| D. | Babbit |
| Answer» B. Aluminum based alloy | |
| 5. |
Which of the following material on addition to the powder mix lowers the strength of the bearing? |
| A. | Oil |
| B. | Lead |
| C. | Bismuth |
| D. | Graphite |
| Answer» E. | |
| 6. |
For bronze bearings, the amount of shrinkage _______ as the particle size of powder mix decreases. |
| A. | decreases |
| B. | increases |
| C. | constant |
| D. | moderate |
| Answer» C. constant | |