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