航空气象学课后习题电子档.doc

习题Chapter 1 ATMOSPHERE AND TEMPERATURE 1. Which feature is associated with the tropopause? A. Absence of wind and turbulence. B. Absolute upper limit of cloud formation. C. Abrupt change of temperature lapse rate. 2. What is a characteristic of the troposphere? A. It contains all the moisture of the atmosphere. B. There is an overall decrease of temperature with an increase of altitude. C. The average altitude of the top of the troposphere is about 6 miles. 3. The average height of the troposphere in the middle latitudes is A. 20,000feet. B. 25,000feet. C. 37,000feet. 4. The primary cause of all changes in the Earth’s weather is A. variation of solar energy received by the Earth’s regions. B. changes in air pressure over the Earth’s surface. C. movement of the air masses. 5. If the air temperature is +8 ℃ at an elevation of 1,350 feet and a standard (average) temperature lapse rate exists, what will be the approximate freezing level? A. 3,350 feet MSL(Mean Sea Level) B. 5,350 feet MSL C. 9,350 feet MSL 6. The most frequent type of ground or surface based temperature inversion is that produced by A. ground radiation on a clear, cool night, when the wind is light. B. warm air being lifted rapidly aloft in the vicinity of mountainous terrain． C. the movement of colder air under warm air, or the movement of warm air over cold air. 7. What feature is associated with a temperature inversion? A. A stable layer of air. B. An unstable layer of air. C. Air mass thunderstorms. 8. What are the characterizes of a ground-based inversion? A. Convection currents at the surface. B. Cold temperatures. C.Poor visibility. 9. Where is a common location for an inversion of the atmosphere? A. At the tropopause. B. In the stratosphere. C. At the base of cumulus clouds. 10. Which weather conditions should be expected beneath a low-level temperature inversion layer when the relative humidity is high? A. Smooth air and poor visibility due to fog, haze, or low cl