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What are the errors in the use of thermometer?
A thermometer must be calibrated before use to avoid false readings.
How do liquid-filled thermometers measure temperature based on thermal expansion?
Look at an ordinary thermometer. You will see the mercury or achohol inside, and you will see regular degree markings along the thermometer. As the mercury or alchohol changes temperature, it expands and contracts.
What is immersion thermometer?
A total immersion thermometer is one that has been calibrated to read correctly when the entire thermometer is submerged in a homogeneously temperated liquid/medium.
What is total immersion thermometer?
A total immersion thermometer is one that has been calibrated to read correctly when the entire thermometer is submerged in a homogeneously temperated liquid/medium.
Why does the liquid in a thermometer move?
It doesn't 'move' exactly, it expands. Originally mercury (a metal in a liquid state at room temperature) was used in thermometers; as the the temperature increases the mercury (or other liquid) expands, taking up more of the volume within the thermometer, causing the level to rise. Thermometers are calibrated to allow the temperature to be measured based on how much expansion has taken place.
Can the temperature sensor be accurately calibrated without using a reference thermometer?
Put it into a temperature controlled enviroment
How is a thermometer calibrated?
It is calibrated by puttin it in some ice.
Where in the refrigetator should you place the calibrated thermometer in order to receive the most accurate temperature reading?
In the center of the the refrigerator
Where in the refrigerator should you place the calibrated thermometer in order to receive the most accurate temperature reading?
You should place is along the wall.
Can use medical electronic thermometer to measure air temperature?
Most medical electronic thermometers are not calibrated to measure ambient temperatures.
Mention any two points of difference between a clinical thermometer and an ordinary mercury thermometer?
A clinical thermometer will offer more precise calibrated readings than a mercury thermometer. The range of measurable temperature differs between a clinical and a mercury thermometer with the mercury thermometer having the wider range.
Why does mercury go up or down in a thermometer?
The mercury in the bulb at the bottom of the thermometer expands or contracts depending on the amount of heat (the temperature). The narrow calibrated tube that you read the temperature on acts to amplify this effect. The calibration is usually either in Fahrenheit or Celsius.
How should the food handler test the temperature of food?
Food temperature is generally checked by inserting the probe into the thickest part of the food, using a sanitized, calibrated, instant-read thermometer.
What are the errors in the use of thermometer?
A thermometer must be calibrated before use to avoid false readings.
How do liquid-filled thermometers measure temperature based on thermal expansion?
Look at an ordinary thermometer. You will see the mercury or achohol inside, and you will see regular degree markings along the thermometer. As the mercury or alchohol changes temperature, it expands and contracts.
What thermometer is based on the metric system?
That depends on what units the thermometer is calibrated in. The SI unit for temperature is the kelvin, but degrees Celsius commonly used, if the thermometer reads in kelvin or degrees Celsius then it is a metric tool.
Why is it necessary to use a calibrated thermometer?
This is important for making correct measurements.
