Questão 1
Questão
110 Fog produced by frontal activity is a result of saturation due to
Questão 2
Questão
111 Which in-flight hazard is most commonly associated with warm fronts?
Questão 3
Questão
112 In which environment is aircraft structural ice most likely to have the highest accumulation rate?
Questão 4
Questão
113 In what ways do advection fog, radiation fog, and steam fog differ in their formation or location?
Responda
-
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
Questão 5
Questão
114 . Which conditions are favorable for the formation of a surface based temperature inversion?
Responda
-
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
Questão 6
Questão
115 . What are the characteristics of stable air?
Responda
-
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
Questão 7
Questão
116 . Which would decrease the stability of an air mass?
Questão 8
Questão
117 . What is a characteristic of stable air?
Questão 9
Questão
118 . What type weather can one expect from moist, unstable air, and very warm surface temperature?
Responda
-
O Strong updrafts and cumulonimbus clouds.
-
O Fog and low stratus clouds.
-
O Continuous heavy precipitation
-
O Fair weather and cirrus clouds
Questão 10
Questão
119 . A moist, unstable air mass is characterized by
Responda
-
O cumuliform clouds and showery precipitation
-
O poor visibility and smooth air.
-
O stratiform clouds and continuous precipitation
-
O good visibility and stratiform clouds
Questão 11
Questão
120 . If clouds form as a result of very stable, moist air being forced to ascend a mountain slope, the clouds will be
Responda
-
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
Questão 12
Questão
121 The formation of either predominantly stratiform or predominantly curnuliform clouds is dependent upon the
Responda
-
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
Questão 13
Questão
122 . When an air mass is stable, which of these conditions are most likely to exist?
Responda
-
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
Questão 14
Questão
123 . From which measurement of the atmosphere can stability be determined?
Responda
-
O The ambient lapse rate.
-
O Atmospheric pressure
-
O The dry adiabatic lapse rate.
-
O The wet ( saturated) adiabatic lapse rate
Questão 15
Questão
124 [Fig.16] What lifts advection fog into low stratus clouds?
Questão 16
Questão
125 Which would increase the stability of an air mass?
Questão 17
Questão
126 The conditions necessary for the formation of stratiform clouds are a lifting action and
Responda
-
O stable, moist air.
-
O unstable, dry air.
-
O unstable, moist air.
-
O stable dry air
Questão 18
Questão
127 What feature is normally associated with the cumulus stage of a thunderstorm?
Questão 19
Questão
128 . The conditions necessary for the formation of cumulonimbus clouds are a lifting action and
Responda
-
O unstable, moist air.
-
O unstable, dry air.
-
O stable, moist air.
-
O stable dry air
Questão 20
Questão
129 . The most severe weather conditions, such as destructive winds, heavy hail, and tornadoes, are generally associated with
Questão 21
Questão
130 Which statement is true concerning squall lines?
Responda
-
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
Questão 22
Questão
131 Select the true statement pertaining to the life cycle of a thunderstorm.
Responda
-
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
Questão 23
Questão
132 . Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
Questão 24
Questão
133 During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Responda
-
O Dissipating.
-
O Mature.
-
O Developing.
-
O All stages
Questão 25
Questão
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:
Responda
-
O Italy
-
O Turkey
-
O UK
-
O Scandinavia