GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gas thermometer
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Clinical thermometer
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Resistance thermometer
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Alcohol thermometer
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Detailed explanation-1: -Ethanol-filled thermometers are used in preference to mercury for meteorological measurements of minimum temperatures and can be used down to −70 °C (−94 °F).
Detailed explanation-2: -The alcohol thermometer is an alternative to the mercury-in-glass thermometer and has similar functions. Unlike mercury, alcohol is less toxic and will evaporate away quickly if subjected to high temperatures. Therefore, it is used to measure low temperatures.
Detailed explanation-3: -The alcohol thermometer uses the alcohol as the thermometric liquid. While the alcohol has lower freezing point than mercury ((freezing point of alcohol is-115 o C ). Thus, alcohol thermometers are preferred to a mercury thermometer in cold countries.