MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the meaning of the first digit in three digits after R type of halo-carbon refrigerants? |
| A. | Number of hydrogen atoms + 2 |
| B. | Number of carbon atoms 1 |
| C. | Number of carbon atoms + 1 |
| D. | Number of carbon atoms |
| Answer» C. Number of carbon atoms + 1 | |