<prompt> Psychrometer Psychrometer is used to measure -HumidityAir velocityRoom temperatureRadiant temperature  <response>: Ans. is a i.e., Humidity Humidity is measured by o Dry and wet Bulb hygrometer o Sling psychrometer o Assmann psychrometer o Air velocity is measured by anemometer. o Radiant temprature is measured by Globe thermometer. o Room temprature is measured by bulb thermometer. 