Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.A.pressure changes in the air massB.movement of the air massC.the heterogeneous nature of the air massD.upper level atmospheric changes

题目

Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.

A.pressure changes in the air mass

B.movement of the air mass

C.the heterogeneous nature of the air mass

D.upper level atmospheric changes

相似考题

1.Cold weather starting of a diesel engine is more difficult than warm weather starting due toA.use of low viscosity oil in cold weatherB.increased moisture content of inlet air in cold weatherC.increased drag of pistons and bearings due to increased oil viscosityD.higher compression pressures reached due to smaller clearances existing in the engine during cold weather

2.Hygroscopic cargoes should be ventilated when ______.A.going from a warm to a cold climateB.the dew point of the outside air is greater than the dew point of the air in the holdC.the dew point of the air in the hold is very lowD.the outside dew point is 16°C and the cargo temperature is 12°C

3.The moisture equilibrium chart can be used to determine the ______．A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium existsB.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodityC.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargoD.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo

4.Steam smoke will occur when ______.A.extremely cold air from shore passes over warmer waterB.warm dry air from shore passes over cooler waterC.cold ocean water evaporates into warm airD.cool rain passes through a warm air mass

更多“Temperature and moisture characteristics are modified in a warm or cold air mass due to __ ”相关问题

  • 第1题：

    A frontal thunderstorm is caused by ______.

    A.pronounced local heating

    B.wind being pushed up a mountain

    C.a warm air mass rising over a cold air mass

    D.an increased lapse rate caused by advection of warm surface air


    正确答案：C
    雷暴天气是由于暖气团的上升超过冷气团造成的。

  • 第2题：

    Advection fog is most commonly caused by ______.

    A.air being warmed above the dew point

    B.saturation of cold air by rain

    C.a rapid cooling of the air near the surface of the Earth at night

    D.warm moist air being blown over a colder surface


    正确答案：D
    平流雾最普遍产生于温暖潮湿的空气吹过较冷的水面。

  • 第3题：

    单选题
    As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperature will （）.
    A

    increase

    B

    decrease

    C

    remain unchanged

    D

    be greatest at dew point


    正确答案： B
    解析： 暂无解析

  • 第4题：

    单选题
    Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.
    A

    pressure changes in the air mass

    B

    movement of the air mass

    C

    the heterogeneous nature of the air mass

    D

    upper level atmospheric changes


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    A frontal thunderstorm is caused by（）.
    A

    pronounced local heating

    B

    wind being pushed up a mountain

    C

    a warm air mass rising over a cold air mass

    D

    an increased lapse rate caused by advection of warm surface air


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    Cold weather starting of a diesel engine is more difficult than warm weather starting due to（）
    A

    use of low viscosity oil in cold weather

    B

    increased moisture content of inlet air in cold weather

    C

    increased drag of pistons and bearings due to increased oil viscosity

    D

    higher compression pressures reached due to smaller clearances existing in the engine during cold weather


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    The moisture equilibrium chart can be used to determine the（）.
    A

    Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists

    B

    Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity

    C

    Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo

    D

    Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    The greater the pressure difference between a high and a low pressure center，the（）.
    A

    dryer the air mass will be

    B

    cooler the temperature will be

    C

    greater the force of the wind will be

    D

    warmer the temperature will be


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    Steam smoke will occur when（）.
    A

    extremely cold air from shore passes over warmer water

    B

    warm dry air from shore passes over cooler water

    C

    cold ocean water evaporates into warm air

    D

    cool rain passes through a warm air mass


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    As the temperature for a given mass of air increases，the（）.
    A

    dew point increases

    B

    dew point decreases

    C

    relative humidity increases

    D

    relative humidity decreases


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Hygroscopic cargoes should be ventilated when（）.
    A

    going from a warm to a cold climate

    B

    the dew point of the outside air is greater than the dew point of the air in the hold

    C

    the dew point of the air in the hold is very low

    D

    the outside dew point is 16°C and the cargo temperature is 12°C


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    The fog produced by warm moist air passing over a cold surface is called（）.
    A

    conduction fog

    B

    radiation fog

    C

    frontal fog

    D

    advection fog


    正确答案： C
    解析： 暂无解析

  • 第13题：

    A warm air mass is characterized by______．

    A.stability

    B.instability

    C.gusty winds

    D.good visibility


    正确答案：A
    暖气团表现为较稳定的特征。

  • 第14题：

    As the temperature for an air mass decreases, the ______.

    A.absolute humidity increases

    B.relative humidity increases

    C.specific humidity increases

    D.dew point rises


    正确答案：B
    随着特定气体的温度升高，相对湿度降低。

  • 第15题：

    单选题
    A warm air mass is characterized by（）.
    A

    stability

    B

    instability

    C

    gusty winds

    D

    good visibility


    正确答案： A
    解析： 暂无解析

  • 第16题：

    单选题
    As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engineSo a water separator should be mounted beneath the bottom part of the engine inlet manifoldA water separator is used in order to （）.
    A

    keep the air from being carried into the engine

    B

    keep the moisture from being condensed

    C

    keep the danger from being carded into the engine

    D

    take away the condensate from the air


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    Clouds form（）.
    A

    as a mass of warm，humid air rises into the atmosphere and cools，condensing moisture into small droplets

    B

    as winds blow across bodies of water，the sun causes the moisture to be absorbed and move upward forming clouds

    C

    dry air compresses moisture from the atmosphere into clouds

    D

    when the relative humidity of the atmosphere is low


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    In reference to air conditioning, when air attains the maximum amount of moisture it can hold at a specific temperature, it is said to be （）.
    A

    superheated

    B

    saturated

    C

    condensed

    D

    convected


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    As the temperature of an air mass decreases，the（）.
    A

    absolute humidity decreases

    B

    relative humidity increases

    C

    specific humidity decreases

    D

    dew point rises


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    The amount of moisture in a given sample of air, when compared with the amount of moisture the air could hold if totally saturated at the existing temperature of the sample, is called （）.
    A

    absolute humidity

    B

    specific humidity

    C

    effective humidity

    D

    relative humidity


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following statements concerning frontal movements is TRUE（）.
    A

    The temperature rises after a cold front passes

    B

    The barometric pressure rises when a warm front passes

    C

    A cold front generally passes faster than a warm front

    D

    A warm front usually has more violent weather associated with it than a cold front


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Hot air can hold（）.
    A

    less moisture than cold air

    B

    more moisture than cold air

    C

    the same amount of moisture as cold air

    D

    moisture independent of air temperature


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    Hygroscopic cargoes should be ventilated when（）.
    A

    going from a warm to a cold climate

    B

    the dew point of the outside air is greater than the dew point of the air in the hold

    C

    the dew point of the air in the hold is very low

    D

    the outside dew point is 16℃ and the cargo temperature is 12℃


    正确答案： C
    解析： 暂无解析

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