Topics. 1  Flagger duties and qualifications. 2  Flagger Safety. 3  Flagging equipment. 4  Flagging procedures. 5  Typical flagger operations.
dew point-the temperature at which the water vapor in the air becomes saturated and condensation begins.temperature-the degree of hotness or coldness of a body or environment (corresponding to its molecular activity).ew point. The temperature at which air becomes saturated with water vapor and dew forms. The dew point varies depending on how much water vapor is in the air.
At 40Â° air temperature, the parcel is saturated and will hold no more molecules of water vapor. The relative humidity is 100 percent. If the temperature of that air parcel is raised by 20Â°, it will hold about twice as many water molecules to reach saturation.Thus, the new relative humidity is now 48 percent.elative humidity decreases as temperature increases. The importance of air temperature to moisture is obvious. At 80Â°, the air has a relatively low humidity and is relatively dry. As it cools, the humidity increases, reaching its saturation point at 40Â°.