MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the operating temperature of borosilicate glass? |
| A. | 200-300 F |
| B. | 350-550 F |
| C. | 600-1000 F |
| D. | 1200-1800 F |
| Answer» D. 1200-1800 F | |