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Q. |
Which of the following is not used as a medium for high temperature heating ? |
A. | Dowtherm |
B. | Mercury |
C. | Liquid metal (e.g. molten sodium) |
D. | Fused salts (e.g., an eutectic mixture of 53% KNO3, 40% NaNO2and 7% NaNO3) |
Answer» B. Mercury |
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