ATPL网上题库3气象
3气象
(1)The approximate percentage of oxygen at ground level
is
A．20%
B．15%
C．41%
正确答案：A
(2)Where is a common location for an inversion?
A．Tropopau
B．Stratosphere
C．Ba of cumulus clouds
正确答案：B
(3)The ction of the atmosphere surrounding the earth
and clost to surface is called
A．troposphere
B．Stratosphere
C．tropopau
正确答案：A
(4)What feature is associated with a temperature
inversion?
A．a stable layer of air
B．an unstable layer of air
C．air mass thunderstorms
正确答案：A
(5)What characterizes a ground-bad inversion? ?A．convection currents at the surface
B．cold temperatures
C．poor visibility
正确答案：C
(6)What condition produces the most frequent type of
ground-or surface-bad temperature inversion?
A．the movement of colder air under warm air or the movement of warm air over cold air
B．widespread sinking of air within a thick layer aloft resulting in heating by compression
C．terrestrial radiation on a clear, relatively calm night
正确答案：C
(7)What is a characteristic of the troposphere?
A．it contains all the moisture of the atmosphere ?B．there is an overall decrea of temperature with an increa of altitude
C．the average altitude of the top of the troposphere is about 6 miles
正确答案：B
(8)The heat of the stratosphere air is chiefly from
A．the absorption of sun radiation by the water vapor
B．the absorption of sun ultraviolet ray radiation by the ozone
C．the absorption of ground radiation by the air.
正确答案：B
(9)The time of the day when the earth’s surface gives
off the greatest amount of terrestrial radiation is ?A．a few hours before midnight
B．at sunt
C．mid afternoon
正确答案：C
(10)When does min temperature normally occur during a
24 hours period?
about 1 hour before sunri
at midnight
after sunri
正确答案：c
由于太阳辐射强度的日变化，气温在一日之中也呈现周期性变化，有一个最低值和最高值，最低值一般出现在早晨日出后，最高值出现在当地正午后2小时左右。
(11)The heat of the troposphere air is chiefly from
A．the absorption of sun radiation by the water vapor
B．the absorption of sun ultraviolet ray radiation by the ozone
C．the absorption of ground radiation by the air
正确答案：C
(12)Which of the following is not correct?
A．solar radiation penetrates the atmosphere more readily than terrestrial radiation6
B．the amount of solar radiation absorbed at the earth surface is independent of the type
of surface
C．water vapour and carbon dioxide are important absorbers of terrestrial radiation
正确答案：A
(13)What is the approximate rate unsaturated air will
cool flowing upslope?
A．3°C per 1,000 feet
B．2°C per 1,000 feet
C．4°C per 1,000 feet
正确答案：A
(14)Which process caus adiabatic cooling?
expansion of air as it ris
movement of air over a colder surface
relea of latent heat during the vaporization process
正确答案：A
(15)Which term applies when the temperature of the air
changes by compression or expansion with no heat added or removed?
A．Katabatic
B．Advection
C．Adiabatic
正确答案：C
(16)When saturated air moves downhill, its temperature
increas
at a faster rate than dry air becau of the relea of latent heat
at a slower rate than dry air becau condensation releas heat
at a slower rate than dry air becau vaporization us heat
正确答案：C
(17)A record of atmospheric temperature can be read for
a
A．barograph
B．thermogram
C．thermograph
正确答案：B
(18)In average, for every 1,000 feet increa in the
troposphere, the temperature of the air will
A．descend 2°C
B．descend 3°C
C．descend 4°C
正确答案：A
(19)A temperature of 45℃ is
A．57℉ or 273K
B．113℉ or 273K
C．113℉ or 318K
正确答案：C
K=273.15+攝氏溫度c=(℉-32)*5/9
20)What condition produces the most frequent type of
ground-or surface-bad temperature inversion?
A．the movement of colder air under warm air or the movement of warm air over cold air
B．widespread sinking of air within a thick layer aloft resulting in heating by compression
C．terrestrial radiation on a clear, relatively calm night
正确答案：C
(21)What is the primary cau of all changes in the
Earth’s weather?
A．change in air pressure over Earth’s surface ?B．variation of solar energy at surface
C．movement of air mass from moist areas to dry areas
正确答案：B
(22)The surface air temperature of a running will
depend on all of the following
A．airfield elevation, runway length and slope, airfield latitude and wind
B．airfield elevation and latitude time of the year, time of day, runway surface prevailing wind and cloud cover
