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A.Lower than pressure altitude.
B.Higher than pressure altitude.
C.Impossible to determine without information on possible
inversion layers at lower altitudes.
B X
In average, for every 1,000 feet increase in the troposphere,
the temperature of the air will .
A. descend 2℃
B.descend 3℃
C. descend 4℃
A X
In daily aeronautical weather reports, the code "VCTS" means
____.
A. There are thunderstorms in the vicinity of the airport but
no thunderstorms over the airport
B. There are rains in the vicinity of the airport but no
thunderstorms over the airport.
C. There are thunderstorms over the airport.
A X
In en route flight, the altimeter setting is
A. QNE
B. QNH
C. QFE
A X
In flight, pilots find forane clouds consisting of cloud bar
and cloud band with flat floor and piled clouds on the top
of some clouds. The descriptive cloud should be.
A. cumulus congestus
B. cumulostratus
C. towering clouds
C X
In northern hemisphere, if fly from high pressure area to low
pressure area at 6000 meters, the wind on the course is _____.
A.right crosswind
B.tailwind
C. left crosswind
C X
In northern sphere, the air cyclone circumfluence is
A. outward, downward and clockwise
B. outward, upward and clockwise
C. inward, upward and counterclockwise
C X
In stable air associated with a high pressure system usually
occurs?
A. Advection fog.
B. Radiation fog.
C. Frontal fog.
B X
In summer, when warm air mass is unstable, what may occur in
layer clouds of cold front?
A. cumulonimbus
B. front fog
C. layer clouds
A X
In the AIRMET 6 of the Figure 3, which weather phenomenon that
influence fly be described.
A. Lines of thunderstorms, fog and rain
B. Nimbostratus, obscured thunderstorms
C. Low ceiling cloud and moderate icing
C X
In the dark, a stationary light will appear to move when stared
at for a period of time. This illusion is known as
A.somatogravic illusion.
B.ground lighting illusion.
C.autokinesis.
C X
In the friction layer of the northern hemisphere, the wind
of low pressure area is .
A. clockwise inbound wind
B.counter clockwise outbound wind
C.counter clockwise inbound wind
C X
In the Northern hemisphere, if a pilot makes a long-distance
flight from east to west, under which of the following
conditions,
A.(接正文might encounter tailwind forming by air pressure
system?) when the airplane is in the south of high pressure
system and in the north of low pressure system.
B. When the airplane is in the north of high pressure system
and in the south of low pressure system.
C. When the airplane is in the north of high pressure and low
pressure systems .
A X
In the SIGMET 8 of the Figure 3, what is the valid period of
time.
A. From 08Z to 22Z.
B. From the 22nd 08Z to the 22nd at 14Z.
C. From 14Z to 22Z
B X
In the SIGMET 8 of the Figure 3, which station predict the
dangerous weather at first
A. ZULS
B. ASSS
C. ZUUU
A X

　
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