Question:
Which one of the following instruments can be used to measure −250°C temperature?
Which one of the following instruments can be used to measure −250°C temperature?
Options:
- By using a mercury based thermometer
- By using an alcohol based thermometer
- By using a clinical thermometer
- By using thermocouple based thermometer
- By using a mercury based thermometer
- By using an alcohol based thermometer
- By using a clinical thermometer
- By using thermocouple based thermometer
Correct Answer: By using thermocouple based thermometer
Explanation:
Hg thermometer: -38 to 250°C. Clinical thermometer: 32 to 42°C. Alcohol thermometers are used for low temperature but it also freezes around -114°C. Thermocouple based thermometer have wide range from -270°C to very high temperature.
Hg thermometer: -38 to 250°C. Clinical thermometer: 32 to 42°C. Alcohol thermometers are used for low temperature but it also freezes around -114°C. Thermocouple based thermometer have wide range from -270°C to very high temperature.