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1、习题Chapter 1 ATMOSPHERE AND TEMPERATURE1. Which feature is associated with the tropopauseA. 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 troposphereA. It contains all the moisture of the atmosp
2、here.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
3、 in the Earths weather is A. variation of solar energy received by the Earths regions.B. changes in air pressure over the Earths 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 th
4、e approximate freezing levelA. 3,350 feet MSL(Mean Sea Level)B. 5,350 feet MSLC. 9,350 feet MSL6. The most frequent type of ground or surface based temperature inversion is that produced byA. ground radiation on a clear, cool night, when the wind is light.B. warm air being lifted rapidly aloft in th
5、e vicinity of mountainous terrainC. 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 groun
6、d-based inversion A. Convection currents at the surface. B. Cold temperatures. 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
7、 temperature inversion layer when the relative humidity is high A. Smooth air and poor visibility due to fog, haze, or low clouds.B. Light wind shear and poor visibility due to haze and light rain. C. Turbulent air and poor visibility due to fog, low stratus-type clouds, and showery precipitation 11
8、.对流层中，对天气变化影响较大的气体是： A.氮气和氧气B.氧气和二氧化碳C.二氧化碳和水汽D.水汽和臭氧 12.对流层顶是一个强大的稳定层，因为： A. 它的上面是平流层 B. 空气干洁，能见度好C. 气流平稳，没有对流运动D 该处气温直减率小 13.在对流层顶以上飞行，常常是： A. 气流平稳，能见度好B. 有尘粒、烟粒等杂质聚积C. 会遇到高云，或积雨云、浓积云顶D. 有使飞机产生颠簸的扰动气流 14.局地气温的最低点通常出现在： A. 后半夜 B. 天亮时C. 早晨D. 日出时 15.能造成较大气温日较差的有利天气和地理条件分别是：A.晴天，陆地 B.晴天，海洋C.阴天，陆地D.阴天，
9、海洋 16.局地气温的非周期变化受下列那一个因素的影响最显著 A.太阳辐射强度 B.海陆分布C.季节 D.冷暖空气的水平运动 17.标准大气的海平面气温等于： A. 0B. 10C. D. 18.气压相等时，较暖和较湿的空气密度分别比较冷和较干的空气密度要A. 小，小B. 大，大C. 小，大D. 大，小 Answers: 习题Chapter 2 ATMOSPHERIC PRESSURE AND ALTIMETRY1. Which pressure is defined as station pressureA. Altimeter setting.B. Actual pressure at f
10、ield elevation.C. Station barometric pressure reduced to sea level.2. What term describes an elongated area of low pressure A. Trough.B. Ridge.C. Hurricane or typhoon. 3. If the ambient temperature is colder than standard at FL 310, what is the relationship between true altitude and pressure altitud
11、eA. They are both the same, 31,000 feet.B. True altitude is lower than 31,000 feet.C. Pressure altitude is lower than true altitude. 4. Where is the usual location of a thermal low A. Over the arctic region.B. Over the eye of a hurricane.C. Over the surface of a dry, sunny region. 5. En route at FL
12、270, the altimeter is set correctly. On descent, a pilot fails to set the local altimeter setting of . If the field elevation is 650 feet, and the altimeter is functioning properly, what will it indicate upon landing A. 585 feet.B. 1,300 feet.C. Sea level. 6. What is corrected altitude (approximate
13、true altitude) A. Pressure altitude corrected for instrument error.B. indicated altitude corrected for temperature variation from standard.C. Density altitude corrected for temperature variation from standard. 7.常用于研究水平气压场的气压是： A. 本站气压B. 场面气压C. 修正海平面气压D. 标准海平面气压 8.飞机起降时，用于调整高度表的气压通常是： A 本站气压B. 场面气压C
14、. 修正海平面气压D. 标准海平面气压 9.航线飞行时，用来调整高度表的气压是： A. 本站气压B. 场面气压C. 修正海平面气压D. 标准海平面气压 10.飞机进入较强下降气流和上升气流区时，高度指示会分别比实际高度： A. 偏高，偏低B. 偏高，偏高C. 偏低，偏高D. 偏低，偏低 11.当飞机按气压式高度表保持一定高度飞向低压区时，其实际高度的变化是： A. 逐渐变低B. 逐渐变高C. 先变低，后变高D. 先变高，后变低 12.当空气密度低于标准大气时，对飞机的起飞载重量或起飞和着陆滑跑距离的影响分别是： A. 减少，加长B. 减少，缩短C. 增大，加长D. 增大，缩短 13.飞机所处位
15、置的密度高度，在冷天和热天通常分别为： A. 低密度高度，高密度高度B. 高密度高度，低密度高度C. 低密度高度，低密度高度D. 高密度高度，高密度高度 Answers:习题Chapter 3 WIND1. At lower levels of the atmosphere, friction causes the wind to flow across isobars into a low because the friction A. decreases windspeed and Coriolis force. B. decreases pressure gradient force.C. creates air turbulence and raises atmospheric pres
