MCQOPTIONS
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MCQOPTIONS
| 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% | |