Which one of the following instruments is used for measuring moisture content of air ?

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Q: 76 (CAPF/2017)

Which one of the following instruments is used for measuring moisture content of air ?

question_subject: 

Science

question_exam: 

CAPF

stats: 

0,59,28,20,59,6,2

keywords: 

{'hydrometer': [0, 0, 0, 1], 'hygrometer': [1, 0, 0, 1], 'moisture content': [0, 1, 0, 0], 'pycnometer': [0, 0, 0, 1], 'air': [1, 0, 0, 0], 'instruments': [2, 1, 2, 2], 'hypsometer': [0, 0, 0, 1]}

The instrument used for measuring the moisture content of air is called a hygrometer.

Option 1: A hydrometer is used for measuring the specific gravity of liquids and is not designed for measuring moisture content in the air.

Option 3: A hypsometer is used for measuring the height of a location above sea level and is not relevant to measuring moisture content in the air.

Option 4: A pycnometer is used for measuring the density of a liquid and is not suitable for measuring moisture content in the air.

A hygrometer, on the other hand, is specifically designed to measure the moisture or humidity in the air. It can provide information about the amount of water vapor present in the air, which can be useful in various applications such as weather forecasting, indoor environment monitoring, or agricultural purposes. The hygrometer works by measuring the moisture in the air through different methods, such as electrical resistance, capacitance, or the use of a hair or synthetic material that responds to changes in humidity.