MCQOPTIONS
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MCQOPTIONS
| 1. |
The rate of tarnish and corrosion of class II cast material having VHN 200 is_______________? |
| A. | 0% |
| B. | 2 to 3% |
| C. | 5 to 10% |
| D. | <1% |
| Answer» B. 2 to 3% | |