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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

题目

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

相似考题

1.When satisfied that there are no contagious diseases on board，the quarantine officer will issue ______.A.an outward clearanceB.a free pratiqueC.landing permitsD.shore passes

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.Advection fog may be formed by cold air passing over a ______.A.colder sea surfaceB.warmer sea surfaceC.dry coastal plainsD.high mountain or plateau

4.Neap tides occur ______.A.at the start of spring, when the Sun is nearly over the equatorB.only when the Sun and Moon are on the same sides of the Earth and are nearly in lineC.when the Sun and Moon are at approximately 90°to each other, as seen from the EarthD.when the Sun , Moon, and Earth are nearly in line, regardless of alignment order

参考答案和解析
正确答案：A
更多“Steam smoke will occur when ______.A.extremely cold air from shore passes over warmer wate ”相关问题

  • 第1题：

    ______ is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature．

    A.MIXING FOG

    B.ADVECTION FOG

    C.RADIATION FOG

    D.ARCTIC SEA SMOKE


    正确答案：D

  • 第2题：

    共用题干
    第二篇

    Hurricane（咫风）Katrina

    A hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be
    124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a
    native American storm god.Hurricanes are typical of a calm central region of low pressure
    between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions.
    Over its lifetime,one of these storms can release as much energy as 10,000 nuclear
    bombs.
    The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm
    tropical waters.Hurricanes can only form and be fed when the sea-surface temperature
    exceeds 27℃ and the surrounding atmosphere is calm.These requirements are met
    between June and November in the northern part of the world.
    Under these conditions, large quantities of water evaporate（蒸发）and condense（冷
    凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with
    the rotation of the Earth,that drives a hurricane.
    When the warm column of air from the sea surface first begins to rise,it causes an area
    of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind
    drags up more moist air from the sea surface in a process that strengthens the storm.Cold
    air falls back to the ocean surface through the eye and on the outside of the storm.
    Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather
    systems are known as depressions,or low air pressure.Hurricane Katrina formed in this
    way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating
    impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its
    wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more
    than half a million people have become homeless in a humanitarian（人道主义的）crisis of a
    scale not seen in the US since the Great Depression.The cost of the damage may top
    $100 billion.

    When the warm air from the sea surface begins to rise,it
    A:creates an area of low pressure.
    B:supplies cold air to the eye of a hurricane.
    C:increases the sea-surface temperature.
    D:strengthens the rotation of the earth.

    答案：A
    解析：

  • 第3题：

    Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them.
    Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces.
    The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.
    Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad.
    Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.

    Why is it dangerous to burn too much wood?

    A.The fire could burn yo
    B.It's not healthy to be too war
    C.Harmful chemicals are released in the so
    D.The smoke is filled with un see able tiny piece

    答案：C
    解析：
    第一段。燃烧木材，排放出烟。烟中存有肉眼看不见的颗粒。这些颗粒是有害的化学物质。燃烧越多的木材，产生的烟就越多，释放的有害化学物质的颗粒也就越多。所以，燃烧过多的木材是危险的。

  • 第4题：

    单选题
    Advection fog may be formed by cold air passing over a（）.
    A

    colder sea surface

    B

    warmer sea surface

    C

    dry coastal plains

    D

    high mountain or plateau


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.
    A

    rising air currents produced by the warm islands

    B

    warm air from the sea rising over higher land areas

    C

    cool land air mixing with warm sea air

    D

    descending air over the islands


    正确答案： B
    解析： 暂无解析

  • 第6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7题：

    单选题
    What is NOT a function of the air supply of a covered lifeboat?（）
    A

    Provides air for engine combustion

    B

    Pressurizes water spray system

    C

    Provides air for passenger respiration

    D

    Prevents smoke and other noxious fumes from entering craft


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    （）is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature.
    A

    MIXING FOG

    B

    ADVECTION FOG

    C

    RADIATION FOG

    D

    ARCTIC SEA SMOKE


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    When evacuating a seaman by helicopter lift，which course should the ship take?（）
    A

    Downwind so that the apparent wind is close to nil

    B

    A course that will keep a free flow of air，clear of smoke，over the hoist area

    C

    A course that will have the hoist area in the lee of the superstructure

    D

    With the wind dead ahead because the helicopter is more maneuverable when going into the wind


    正确答案： C
    解析： 暂无解析

  • 第10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℃ and the cargo temperature is 12℃


    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：

    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14题：

    Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them.
    Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces.
    The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.
    Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad.
    Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.

    What happens to some residents who bum too much wood?

    A.They could lose their home
    B.They pay for the punishmen
    C.They get sick from the smok
    D.The fire could get out of contro

    答案：B
    解析：
    见第五段。在有些城镇，如果居民违反燃烧法规是会受到罚款的。

  • 第15题：

    单选题
    Neap tides occur（）.
    A

    At the start of spring，when the Sun is nearly over the equator

    B

    Only when the Sun and Moon are on the same sides of the Earth and are nearly in line

    C

    When the Sun and Moon are at approximately 90° to each other，as seen from the Earth

    D

    When the Sun，Moon，and Earth are nearly in line，regardless of alignment order


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    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： A
    解析： 暂无解析

  • 第17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18题：

    单选题
    Spring tides occur（）.
    A

    at the start of spring，when the Sun is nearly over the equator

    B

    only when the Sun and Moon are on the same side of the Earth and nearly in line

    C

    when the Sun and Moon are at approximately 90°to each other as seen from the Earth

    D

    when the Sun，Moon，and Earth are nearly in line，in any order


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following methods is normally used to control the temperature of air distributed from individual cooling coils in an air conditioning system using a chilled water circulation system?（）
    A

    A room thermostat activates an electric heater at each individual chilled air outlet when necessary

    B

    Varying the number of passes the air makes across the coils

    C

    Varying the temperature of the water through the coils

    D

    Varying the quantity of water flowing through the coils


    正确答案： B
    解析： 暂无解析

  • 第20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21题：

    单选题
    Prior to lighting off a cold automatically fired auxiliary boiler, you should （）.
    A

    check and regulate the water level

    B

    close the air cock once fires are lit

    C

    blowdown the gage glass

    D

    crack the steam stop to assure protective steam flow


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（）
    A

    The diesel oil must never be allowed to mix with the heavy fuel

    B

    The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve

    C

    The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve

    D

    The heating steam must be secured before the diesel oil passes through the three-way valve


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    A space should be ventilated when（）.
    A

    The cargo's temperature is colder than the dew point of the air in the space

    B

    The cargo's temperature is warmer than the dew point of the air in the space

    C

    The dew point of the air in the space is lower than the dew point of the outside air

    D

    All of the above


    正确答案： A
    解析： 暂无解析

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