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Pick up correct statement about calibration of temperature sensors by comparison method using liquid bath : | |
A. | water is used for temperatures from 0 to I00°C [Wrong Answer] |
B. | special grade of paraffin oil is used for temperatures between 100 and 200°C [Wrong Answer] |
C. | For temperature between 200 and 600°C, a mixture of sodium nitrate and potassium nitrate is used [Wrong Answer] |
D. | all of above are true [Correct Answer] |
E. | none of above is true. [Wrong Answer] |