As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperatures will ______.A.increaseB.decreaseC.remain unchangedD.be greatest at dew point

题目

As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperatures will ______.

A.increase

B.decrease

C.remain unchanged

D.be greatest at dew point

相似考题

1.dry bulb temperature

2.A sling psychrometer is used to measure ______.A.seawater temperatureB.engine temperatureC.dry bulb and wet bulb temperaturesD.barometric pressure

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.In an air conditioning system, moisture is removed from the air by ______.A.filtersB.separatorsC.ducted trapsD.dehumidifiers

更多“As the amount of moisture in the air increases, the difference between the dry bulb and we ”相关问题

  • 第1题：

    We must make a difference between（）language and（）language.

    Aspoken；written

    Bspeaking；written

    Cspeaking；writing

    Dspeak；write


    A
    略

  • 第2题：

    单选题
    The dew point of air is reached when the wet bulb temperature is （）.
    A

    Twice the dry bulb temperature

    B

    10℃ above the dry bulb temperature

    C

    5℃ above the dry bulb temperature

    D

    Equal to the dry bulb temperature


    正确答案： C
    解析： 暂无解析

  • 第3题：

    单选题
    The dew point temperature is（）.
    A

    always higher than the air temperature

    B

    always lower than the air temperature

    C

    equal to the difference between the wet and dry bulb temperatures

    D

    the temperature at which the air is saturated with water vapor


    正确答案： D
    解析： 暂无解析

  • 第4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5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6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7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8题：

    单选题
    To prevent the unnecessary loading of an air conditioning system while maintaining the designed dry bulb temperature and relative humidity in an air conditioning system, you should （）
    A

    admit only enough fresh outside air to provide proper ventilation

    B

    reduce the air reheating system load

    C

    lower the compressor head pressure

    D

    operate the purge recovery unit continuously


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    The principal difference between loop scavenging and crossflow scavenging, as used in single acting diesel engines, is the （）
    A

    direction of air flow within the cylinder

    B

    sequence of port opening

    C

    method of opening exhaust ports

    D

    volume of air admitted to the cylinder


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    The latent heat of water vapor in air is dependent upon the （）
    A

    dry bulb temperature

    B

    wet bulb temperature

    C

    dew point

    D

    dry point


    正确答案： C
    解析： 暂无解析

  • 第11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12题：

    单选题
    The sensible heat of air is dependent upon the （）.
    A

    dry bulb temperature

    B

    wet bulb temperature

    C

    saturation temperature

    D

    water vapor superheat


    正确答案： C
    解析： 暂无解析

  • 第13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14题：

    单选题
    In an air conditioning system, moisture is removed from the air by（）
    A

    filers

    B

    separators

    C

    ducted traps

    D

    dehumidifiers


    正确答案： C
    解析： 暂无解析

  • 第15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16题：

    单选题
    What could cause a significant difference between actual chain tension and the tension measured by the tensiometer? （）
    A

    The type of anchor and mooring line being used

    B

    The type of bottom in which the ship is anchored

    C

    A significant difference between air and water temperature

    D

    The chain contacting a chock or fairlead between the tensiometer and the lower swivel fairlead


    正确答案： C
    解析： 暂无解析

  • 第17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18题：

    单选题
    If air at 95℃ dry bulb temperature and 50% relative humidity is conditioned to 75℃ dry bulb temperature and 50% relative humidity, it is an example of （）.
    A

    cooling only

    B

    cooling and humidifying

    C

    cooling and dehumidifying

    D

    adiabatic cooling


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    A cargo hold has been determined to have a relative humidity of 80% and a dry bulb temperature of 80 ℃ and a dry bulb temperature of 85℃.When the hold is sealed and the dry bulb temperature decreases, the relative humidity in the space will （）
    A

    decrease

    B

    increase

    C

    decrease to zero

    D

    remain unchanged


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    On what do you depend having the air cooler of main engine chemically washed?（）
    A

    increased air pressure differenced before and aft air cooler

    B

    reduced exhaust temperature in all cylinders

    C

    reduced temperature difference between water inlet and outlet

    D

    both A and C


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    A psychrometer has two thermometers that provide dry bulb and wet bulb temperatures. By comparing these two temperature readings with a set of tables you can determine the （）.
    A

    atmospheric pressure

    B

    wind speed

    C

    relative humidity and dew point

    D

    wind chill factor


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    We must make a difference between（）language and（）language.
    A

    spoken；written

    B

    speaking；written

    C

    speaking；writing

    D

    speak；write


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    The passage is mainly discussing _____.
    A

    the difference between general history and art history

    B

    the making of art history

    C

    what we can learn from art

    D

    the influence of artists on art history


    正确答案： A
    解析：
    文章第一段第一句点明了主题。虽然第一、二段对比了通史和艺术历史的差异，但并非讨论的中心，因为大量篇幅是用来讲述艺术的表现功能和作用，如最后一段，故C符合题意。

相关内容