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Quiz von tsampikos pompou, aktualisiert more than 1 year ago
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Frage 1
Frage
110 Fog produced by frontal activity is a result of saturation due to
Antworten
-
O evaporation of precipitation.
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O nocturnal cooling
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O adiabatic cooling.
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O advection of moist air
Frage 2
Frage
111 Which in-flight hazard is most commonly associated with warm fronts?
Antworten
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O Precipitation-induced fog.
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O Advection fog.
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O Radiation fog.
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O Steam fog
Frage 3
Frage
112 In which environment is aircraft structural ice most likely to have the highest accumulation rate?
Antworten
-
O Freezing rain.
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O Cumulus clouds with below freezing tempera¬tures.
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O Freezing drizzle.
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O None of the those
Frage 4
Frage
113 In what ways do advection fog, radiation fog, and steam fog differ in their formation or location?
Antworten
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O Radiation fog is restricted to land areas; advection fog is most common along coastal areas; steam fog forms over a water surface.
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O Advection fog deepens as windspeed increases up to 20 knots; steam fog requires calm or very light wind; radiation fog forms when the ground or water cools the air by radiation.
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O Steam fog forms from moist air moving over a colder surface; advection fog requires cold air over a warmer surface; radiation fog is produced by radiational cooling of the ground.
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O None of the those
Frage 5
Frage
114 . Which conditions are favorable for the formation of a surface based temperature inversion?
Antworten
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O Clear, cool nights with calm or light wind,
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O Area of unstable air rapidly transferring heat from the surface.
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O Broad areas of cumulus clouds with smooth, level bases at the same altitude
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O Advection of warm moist air
Frage 6
Frage
115 . What are the characteristics of stable air?
Antworten
-
O Poor visibility; steady precipitation; stratus clouds.
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O Good visibility; steady precipitation; stratus clouds.
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O Poor visibility; intermittent precipitation; cumulus clouds.
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O Good visibility, turbulence, cumulus clouds
Frage 7
Frage
116 . Which would decrease the stability of an air mass?
Antworten
-
O Warming from below.
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O Cooling from below.
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O Decrease in water vapor.
-
O None of those
Frage 8
Frage
117 . What is a characteristic of stable air?
Antworten
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O Stratiform clouds.
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O Fair weather cumulus clouds.
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O Temperature decreases rapidly with altitude
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O Cirrus clouds
Frage 9
Frage
118 . What type weather can one expect from moist, unstable air, and very warm surface temperature?
Antworten
-
O Strong updrafts and cumulonimbus clouds.
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O Fog and low stratus clouds.
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O Continuous heavy precipitation
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O Fair weather and cirrus clouds
Frage 10
Frage
119 . A moist, unstable air mass is characterized by
Antworten
-
O cumuliform clouds and showery precipitation
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O poor visibility and smooth air.
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O stratiform clouds and continuous precipitation
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O good visibility and stratiform clouds
Frage 11
Frage
120 . If clouds form as a result of very stable, moist air being forced to ascend a mountain slope, the clouds will be
Antworten
-
O stratus type with little vertical development and little or no turbulence.
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O cirrus type with no vertical development or turbulence
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O cumulus type with considerable vertical development and turbulence.
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O rotor type
Frage 12
Frage
121 The formation of either predominantly stratiform or predominantly curnuliform clouds is dependent upon the
Antworten
-
O stability of the air being lifted.
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O source of lift
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O temperature of the air being lifted.
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O the difference between surface temperature and due point
Frage 13
Frage
122 . When an air mass is stable, which of these conditions are most likely to exist?
Antworten
-
O Smoke, dust, haze, etc., concentrated at the lower levels with resulting poor visibility.
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O Numerous towering cumulus and cumulonimbus clouds
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O Moderate to severe turbulence at the lower levels.
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O Updrafts and showery precipitation
Frage 14
Frage
123 . From which measurement of the atmosphere can stability be determined?
Antworten
-
O The ambient lapse rate.
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O Atmospheric pressure
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O The dry adiabatic lapse rate.
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O The wet ( saturated) adiabatic lapse rate
Frage 15
Frage
124 [Fig.16] What lifts advection fog into low stratus clouds?
Antworten
-
O Surface winds of approximately 15 knots or stronger.
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O Nighttime cooling.
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O Dryness of the underlying land mass.
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O Updraft
Frage 16
Frage
125 Which would increase the stability of an air mass?
Antworten
-
O Cooling from below.
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O Warming from below.
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O Decrease in water vapor.
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O Increase in water vapor
Frage 17
Frage
126 The conditions necessary for the formation of stratiform clouds are a lifting action and
Antworten
-
O stable, moist air.
-
O unstable, dry air.
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O unstable, moist air.
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O stable dry air
Frage 18
Frage
127 What feature is normally associated with the cumulus stage of a thunderstorm?
Antworten
-
O Continuous updraft.
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O Roll cloud
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O Beginning of rain at the surface.
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O Anvil top
Frage 19
Frage
128 . The conditions necessary for the formation of cumulonimbus clouds are a lifting action and
Antworten
-
O unstable, moist air.
-
O unstable, dry air.
-
O stable, moist air.
-
O stable dry air
Frage 20
Frage
129 . The most severe weather conditions, such as destructive winds, heavy hail, and tornadoes, are generally associated with
Antworten
-
O squall lines.
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O slow-moving warm fronts which slope above the tropopause.
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O fast-moving occluded fronts.
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O warm sector
Frage 21
Frage
130 Which statement is true concerning squall lines?
Antworten
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O They offer the most intense weather hazards to aircraft.
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O They form slowly, but move rapidly.
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O They are associated with frontal systems only.
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O None of the those
Frage 22
Frage
131 Select the true statement pertaining to the life cycle of a thunderstorm.
Antworten
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O The beginning of rain at the Earth's surface indicates the mature stage of the thunderstorm
-
O Updrafts continue to develop throughout the dissipating stage of a thunderstorm
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O The beginning of rain at the Earth's surface indicates the dissipating stage of the thunderstorm
-
O Updrafts develop only throughout the cumulus stage
Frage 23
Frage
132 . Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
Antworten
-
O The start of rain.
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O The appearance of an anvil top.
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O Growth rate of cloud is maximum
-
O Develop of updraft
Frage 24
Frage
133 During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Antworten
-
O Dissipating.
-
O Mature.
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O Developing.
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O All stages
Frage 25
Frage
134 Refer on the Significant Weather Chart in Fig.14.
The SIGMET of the same day warns:
WSIY31 LIIB 230437
LIMM SIGMET 02 VALID 230500/230700 LIMM-
MILANO FIR EMBD TS FCST ALPINE AREA AND PO VALLEY AT THE
BORDER WITH ALPS MAINLY CENTRAL PART MOV E NC
SEV ICE FCST BTN FL100 AND FL190 MAINLY CENTRAL ALPS AND PREALPINE
AREA MOV SE NC=
For the area of:
Antworten
-
O Italy
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O Turkey
-
O UK
-
O Scandinavia
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