5 METEO. EXAM. PREP.

Frage 1 von 25

1

110 Fog produced by frontal activity is a result of saturation due to

Wähle eine der folgenden:

O evaporation of precipitation.
O nocturnal cooling
O adiabatic cooling.
O advection of moist air

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Frage 2 von 25

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111 Which in-flight hazard is most commonly associated with warm fronts?

Wähle eine der folgenden:

O Precipitation-induced fog.
O Advection fog.
O Radiation fog.
O Steam fog

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Frage 3 von 25

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112 In which environment is aircraft structural ice most likely to have the highest accumulation rate?

Wähle eine der folgenden:

O Freezing rain.
O Cumulus clouds with below freezing tempera¬tures.
O Freezing drizzle.
O None of the those

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Frage 4 von 25

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113 In what ways do advection fog, radiation fog, and steam fog differ in their formation or location?

Wähle eine der folgenden:

O Radiation fog is restricted to land areas; advection fog is most common along coastal areas; steam fog forms over a water surface.
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.
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.
O None of the those

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Frage 5 von 25

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114 . Which conditions are favorable for the formation of a surface based temperature inversion?

Wähle eine der folgenden:

O Clear, cool nights with calm or light wind,
O Area of unstable air rapidly transferring heat from the
surface.
O Broad areas of cumulus clouds with smooth, level
bases at the same altitude
O Advection of warm moist air

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Frage 6 von 25

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115 . What are the characteristics of stable air?

Wähle eine der folgenden:

O Poor visibility; steady precipitation; stratus clouds.
O Good visibility; steady precipitation; stratus clouds.
O Poor visibility; intermittent precipitation; cumulus clouds.
O Good visibility, turbulence, cumulus clouds

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Frage 7 von 25

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116 . Which would decrease the stability of an air mass?

Wähle eine der folgenden:

O Warming from below.
O Cooling from below.
O Decrease in water vapor.
O None of those

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Frage 8 von 25

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117 . What is a characteristic of stable air?

Wähle eine der folgenden:

O Stratiform clouds.
O Fair weather cumulus clouds.
O Temperature decreases rapidly with altitude
O Cirrus clouds

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Frage 9 von 25

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118 . What type weather can one expect from moist, unstable air, and very warm surface temperature?

Wähle eine der folgenden:

O Strong updrafts and cumulonimbus clouds.
O Fog and low stratus clouds.
O Continuous heavy precipitation
O Fair weather and cirrus clouds

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Frage 10 von 25

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119 . A moist, unstable air mass is characterized by

Wähle eine der folgenden:

O cumuliform clouds and showery precipitation
O poor visibility and smooth air.
O stratiform clouds and continuous precipitation
O good visibility and stratiform clouds

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Frage 11 von 25

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120 . If clouds form as a result of very stable, moist air being forced to ascend a mountain slope, the clouds will be

Wähle eine der folgenden:

O stratus type with little vertical development and little
or no turbulence.
O cirrus type with no vertical development or
turbulence
O cumulus type with considerable vertical development
and turbulence.
O rotor type

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Frage 12 von 25

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121 The formation of either predominantly stratiform or predominantly curnuliform clouds is dependent upon the

Wähle eine der folgenden:

O stability of the air being lifted.
O source of lift
O temperature of the air being lifted.
O the difference between surface temperature and due point

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Frage 13 von 25

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122 . When an air mass is stable, which of these conditions are most likely to exist?

Wähle eine der folgenden:

O Smoke, dust, haze, etc., concentrated at the lower
levels with resulting poor visibility.
O Numerous towering cumulus and cumulonimbus
clouds
O Moderate to severe turbulence at the lower levels.
O Updrafts and showery precipitation

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Frage 14 von 25

1

123 . From which measurement of the atmosphere can stability be determined?

Wähle eine der folgenden:

O The ambient lapse rate.
O Atmospheric pressure
O The dry adiabatic lapse rate.
O The wet ( saturated) adiabatic lapse rate

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Frage 15 von 25

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124 [Fig.16] What lifts advection fog into low stratus clouds?

Wähle eine der folgenden:

O Surface winds of approximately 15 knots or stronger.
O Nighttime cooling.
O Dryness of the underlying land mass.
O Updraft

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Frage 16 von 25

1

125 Which would increase the stability of an air mass?

Wähle eine der folgenden:

O Cooling from below.
O Warming from below.
O Decrease in water vapor.
O Increase in water vapor

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Frage 17 von 25

1

126 The conditions necessary for the formation of stratiform clouds are a lifting action and

Wähle eine der folgenden:

O stable, moist air.
O unstable, dry air.
O unstable, moist air.
O stable dry air

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Frage 18 von 25

1

127 What feature is normally associated with the cumulus stage of a thunderstorm?

Wähle eine der folgenden:

O Continuous updraft.
O Roll cloud
O Beginning of rain at the surface.
O Anvil top

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Frage 19 von 25

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128 . The conditions necessary for the formation of cumulonimbus clouds are a lifting action and

Wähle eine der folgenden:

O unstable, moist air.
O unstable, dry air.
O stable, moist air.
O stable dry air

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Frage 20 von 25

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129 . The most severe weather conditions, such as destructive winds, heavy hail, and tornadoes, are generally associated with

Wähle eine der folgenden:

O squall lines.
O slow-moving warm fronts which slope above the tropopause.
O fast-moving occluded fronts.
O warm sector

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Frage 21 von 25

1

130 Which statement is true concerning squall lines?

Wähle eine der folgenden:

O They offer the most intense weather hazards to aircraft.
O They form slowly, but move rapidly.
O They are associated with frontal systems only.
O None of the those

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Frage 22 von 25

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131 Select the true statement pertaining to the life cycle of a thunderstorm.

Wähle eine der folgenden:

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
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

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Frage 23 von 25

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132 . Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?

Wähle eine der folgenden:

O The start of rain.
O The appearance of an anvil top.
O Growth rate of cloud is maximum
O Develop of updraft

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Frage 24 von 25

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133 During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?

Wähle eine der folgenden:

O Dissipating.
O Mature.
O Developing.
O All stages

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Frage 25 von 25

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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:

Wähle eine der folgenden:

O Italy
O Turkey
O UK
O Scandinavia

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