A generally circular low pressure area is called a(n)______．A.cycloneB.anticycloneC.cold frontD.occluded front

题目

A generally circular low pressure area is called a(n)______．

A.cyclone

B.anticyclone

C.cold front

D.occluded front

相似考题

1.The region of high pressure extending around the Earth at about 35°N latitude is called the_____A.prevailing westerliesB.horse latitudesC.troposphereD.doldrums

2.Fog is most commonly associated with a(n) ______.A.warm front at nightB.low pressure areaC.anticycloneD.lack of frontal activity

3.When a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）______．A.High pressure areaB.Extratropical low-pressure systemC.Tropical stormD.Easterly wave

4.A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a ______.A.dump valveB.deflectorC.separatorD.diverter

更多“A generally circular low pressure area is called a(n)______.A.cycloneB.anticycloneC.cold f ”相关问题

  • 第1题：

    On the pole side of the trade wind belt，there is an area of high pressure with weak pressure gradients and light，variable winds．This area is called the ______．

    A.Prevailing westerlies

    B.Geostrophic winds

    C.Doldrums

    D.Horse latitudes


    正确答案：D

  • 第2题：

    An occluded front is caused by a(n) ______.

    A.low pressure area

    B.high pressure area

    C.area of calm air

    D.cold front overtaking a warm front


    正确答案：D
    锢囚锋是由于冷锋赶上暖风造成的。

  • 第3题：

    单选题
    Generally speaking，you should expect to find low atmospheric pressure prevailing in the earth’s（）.
    A

    equatorial area

    B

    polar regions

    C

    mid-latitudes

    D

    All of the above


    正确答案： B
    解析： 暂无解析

  • 第4题：

    单选题
    Low pressure disturbances，which travel along the intertropical convergence zone，are called（）.
    A

    permanent waves

    B

    tidal waves

    C

    tropical waves

    D

    tropical storms


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    Compared to a low pressure system，generally the air in a high is（）.
    A

    warmer，less dense，and less stable

    B

    cool，more dense，and drier

    C

    muggy and cloudy

    D

    extremely moist with high relative humidity


    正确答案： D
    解析： 暂无解析

  • 第6题：

    单选题
    Which of the following statements is true concerning the overall efficiency of air compressors?（）
    A

    High pressure compressors are more efficient than low pressure compressors

    B

    Mechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unit

    C

    Two stage compressors are generally more efficient than single stage compressors

    D

    The volumetric efficiency is decreased in multistage compressors


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.
    A

    High pressure area

    B

    Extratropical low-pressure system

    C

    Tropical storm

    D

    Easterly wave


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    A generally circular low pressure area is called a(n)（）.
    A

    cyclone

    B

    anticyclone

    C

    cold front

    D

    occluded front


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    In order to distribute the side pressures over a wide area of the cylinder walls and liners, which of the listed types of pistons are used in modem low pressure air compressors?（）
    A

    Differential

    B

    Trunk

    C

    Barrel

    D

    Valve-in-head


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Low pressure air is usually taken through （） or pressure regulators to a low pressure reservoir supplying a ring main through driers.
    A

    globe valves

    B

    butterfly valves

    C

    gate valves

    D

    reducing valves


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    A katabatic wind blows（）.
    A

    up an incline due to surface heating

    B

    in a circular pattern

    C

    down an incline due to cooling of the air

    D

    horizontally between a high and a low pressure area


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
    A

    prevailing westerlies

    B

    horse latitudes

    C

    trade winds

    D

    subpolar low pressure belts


    正确答案： A
    解析： 暂无解析

  • 第13题：

    A barometer showing falling pressure indicates the approach of a ______.

    A.high pressure system

    B.low pressure system

    C.high dew point

    D.low dew point


    正确答案：B
    气压计显示气压下降，表示低气压临近。

  • 第14题：

    If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the Northern Hemisphere?______.

    A.East to northeast

    B.East to southeast

    C.North to northwest

    D.South to southeast


    正确答案：C
    假如你的气象报告显示有一低压区域的中心正好在你船位置以东100海里，在北半球你将预计是什么风？北到西北风

  • 第15题：

    单选题
    The device used for low-pressure control and high-pressure cutout on a compressor is called a（）
    A

    cutout

    B

    pressure controller

    C

    controller switch

    D

    cutout switch


    正确答案： A
    解析： 暂无解析

  • 第16题：

    单选题
    Two well-developed high pressure areas may be separated by a（）.
    A

    Hill of low pressure

    B

    Trough of low pressure

    C

    Valley of low pressure

    D

    Ridge of low pressure


    正确答案： C
    解析： 暂无解析

  • 第17题：

    单选题
    The atmosphere in the vicinity of a high pressure area is called a(n)（）.
    A

    anticyclone

    B

    cold front

    C

    occluded front

    D

    cyclone


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a （）.
    A

    dump valve

    B

    deflector

    C

    separator

    D

    diverter


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    An air mass is termed warm if（）.
    A

    it is above 70°F

    B

    the ground over which it moves is cooler than the air

    C

    it originated in a high pressure area

    D

    it originated in a low pressure area


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    The direction of the surface wind is（）.
    A

    directly from high pressure toward low pressure

    B

    directly from low pressure toward high pressure

    C

    from high pressure toward low pressure deflected by the earth's rotation

    D

    from low pressure toward high pressure deflected by the earth's rotation


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position，what winds can you expect in the Northern Hemisphere?（）.
    A

    East to northeast

    B

    East to southeast

    C

    North to northwest

    D

    South to southeast


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    The diurnal variation of pressure is most noticeable（）.
    A

    above the polar circles

    B

    in a low pressure area

    C

    during periods of low temperatures

    D

    in the doldrums


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    On the pole side of the trade wind belt，there is an area of high pressure with weak pressure gradients and light，variable winds. This area is called the（）.
    A

    prevailing westerlies

    B

    geostrophic winds

    C

    doldrums

    D

    horse latitudes


    正确答案： A
    解析： 暂无解析

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