VPY-0059
QUESTION
Humidity of air is estimated by?
OPTIONS
(A) Simple thermometer
(B) Kata thermometer
(C) Laboratory thermometer
(D) Hygrometer
ANSWER
(D) Hygrometer
EXPLANATION
Hygrometer is the correct option because a hygrometer is an instrument used to measure humidity, or the moisture content of air. A simple thermometer measures temperature, a kata thermometer is used in assessing cooling power/air movement, and a laboratory thermometer measures temperature rather than humidity.
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