Which of the following thermometers is not suitable for distant reading upto 60 metres ?
Correct answer: B. Mercury in glass thermometer
- A. Vapor pressure thermometer
- B. Mercury in glass thermometer
- C. Constant volume gas thermometer
- D. Resistance thermometer
Explanation
A mercury-in-glass thermometer gives a local visual reading and cannot conveniently transmit that reading over 60 metres. Electrical resistance and pressure-based thermometers can be adapted for remote indication.
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