7.8: Temperature/Dew Point and Fog Flashcards
If the temperature/dewpoint spread is small and decreasing, and the temperature is 62°F, what type weather is most likely to develop?
A. Freezing precipitation.
B. Thunderstorms.
C. Fog or low clouds.
Fog or low clouds.
What is meant by the term “dewpoint”?
A. The temperature at which condensation and evaporation are equal.
B. The temperature at which dew will always form.
C. The temperature to which air must be cooled to become saturated.
The temperature to which air must be cooled to become saturated.
The amount of water vapor which air can hold depends on the
A. dewpoint.
B. air temperature.
C. stability of the air.
air temperature.
What are the processes by which moisture is added to unsaturated air?
A. Evaporation and sublimation.
B. Heating and condensation.
C. Supersaturation and evaporation.
Evaporation and sublimation.
Clouds, fog, or dew will always form when
A. water vapor condenses.
B. water vapor is present.
C. relative humidity reaches 100 percent.
water vapor condenses.
Low-level turbulence can occur and icing can become hazardous in which type of fog?
A. Rain-induced fog.
B. Upslope fog.
C. Steam fog.
Steam fog.
In which situation is advection fog most likely to form?
A. A warm, moist air mass on the windward side of mountains.
B. An air mass moving inland from the coast in winter.
C. A light breeze blowing colder air out to sea.
An air mass moving inland from the coast in winter.
What situation is most conducive to the formation of radiation fog?
A. Warm, moist air over low, flatland areas on clear, calm nights.
B. Moist, tropical air moving over cold, offshore water.
C. The movement of cold air over much warmer water.
Warm, moist air over low, flatland areas on clear, calm nights.
What types of fog depend upon wind in order to exist?
A. Radiation fog and ice fog.
B. Steam fog and ground fog.
C. Advection fog and upslope fog.
Advection fog and upslope fog.
