CTET 2 Math and Science Jul 2013 Paper

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Question : 82 of 120

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While teaching the correct method of reading a clinical thermometer to class VIII students, Neha mentions the following necessary precautions to be taken:

Thermometer should be washed with hot water before and after use.
Do not hold the thermometer by the bulb while taking the reading.
Ensure that before use, the mercury level in the thermometer is below 35 °C.
Read the thermometer keeping the level of mercury along the line of sight

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