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A wet bulb thermometer, simply has the sensitive bulb, dampened with water.
A small muslin bag with wick attached, is placed over the bulb. The wick is placed in a small container of water, which must be periodically topped up.
The water around the bulb evaporates, giving a cooling effect. As the water evaporates, more is drawn via the wick from the reservoir.
The amount of evaporation, will depend on the water saturation already in the atmosphere. By comparing the temperature with a normal thermometer and reading the results in a table, the dew point can be found.
What else can I help you with?
What is the use of dry and wet bulb tenperature?
How you would use a wet-bulb thermoter and a dry-bulb theremometer to fine the relative humidity?
What is the wet bulb depression if the dry bulb is 20 and the wet bulb is 17?
15
Is The wet bulb thermometer reading is always higher than the dry bulb?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Is the wet bulb thermometer reading always higher than the dry bulb?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Is the wet bulb thermometer reading always higher than a dry bulb reading?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Will the relative humidity be high if the wet-bulb depression increases?
No, the relative humidity will be low if the wet-bulb depression increases. Wet-bulb depression is the difference between the dry-bulb temperature and the wet-bulb temperature, and a higher wet-bulb depression indicates drier air.
What main parts are to make a psychrometer?
A psychrometer consists of two thermometers: a dry-bulb thermometer and a wet-bulb thermometer. It also uses a wick or cloth that is moistened with distilled water to acquire readings. These components work together to measure relative humidity in the air.
The difference between wet-bulb and dry-bulb temperature is called?
The difference between wet-bulb and dry-bulb temperature is called the Wet-Bulb Depression. It is a measure of air humidity, with a larger depression indicating higher humidity levels.
What is the wet-bulb depression if the dry bulb is 20 and the wet bulb is 17?
The wet-bulb depression is 3°C (20°C - 17°C). It represents the difference between the dry-bulb temperature and the wet-bulb temperature, indicating the maximum potential cooling that can be achieved through evaporation.
Explain how you would use a wet bulb thermometer and a dry bulb thermometer to find the relative humidity?
the wet bulb is cooler
What does a wet bulb and a dry bulb measure?
A wet bulb measures the temperature after water evaporation allows to cool and a dry bulb measures air temperature.
Which one is always higher wet bulb temperature or dry bulb temperature?
The wet bulb temperature is always lower than the dry bulb temperature. The wet bulb temperature is the temperature taken by a thermometer covered in a wet cloth and exposed to moving air, and it reflects the evaporative cooling effect.
