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| Q. |
How does freeze-tolerance work? |
| A. | by expansion of pipes carrying transfer fluid |
| B. | by compression of pipes carrying transfer fluid |
| C. | by increasing the temperature of pipes carrying transfer fluid |
| D. | by increasing the pressure inside pipes carrying transfer fluid |
| Answer» A. by expansion of pipes carrying transfer fluid | |
| Explanation: freeze-tolerance works by expansion of pipes carrying the transfer fluid. the low pressure pipes are made of silicone rubber that expands on freezing. | |
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