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| Q. |
Out of the following refrigerants which one will provide highest compressor displacement per tonne of refrigeration in a vapour compression system operating between fixed temperatures |
| A. | Freon 22 |
| B. | Carbondioxide |
| C. | Freon 11 |
| D. | Freon 12 |
| E. | Ammonia |
| Answer» C. Freon 11 | |
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