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Quiz von tsampikos pompou, aktualisiert more than 1 year ago
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Frage 1
Frage
161 The suffix "nimbus " used in naming clouds, means
Antworten
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O a rain cloud.
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O a cloud with extensive vertical development.
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O a middle cloud containing ice pellets.
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O a cloud with extensive horizontal development
Frage 2
Frage
162 .The boundary between two, different air masses is referred to as a
Antworten
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O front.
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O frontolysis.
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O frontogenesis.
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O occlusion
Frage 3
Frage
163 . One of the most easily recognized discontinuities across a front is
Antworten
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O a change in temperature.
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O an increase in cloud coverage.
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O an increase in relative humidity.
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O an increase in precipitation
Frage 4
Frage
164 . One weather phenomenon which will always occur when flying across a front is a change in the
Antworten
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O wind direction.
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O type of precipitation.
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O stability of the air mass.
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O type of clouds
Frage 5
Frage
165 Steady precipitation preceding a front is an indication of
Antworten
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O stratiform clouds with little or no turbulence
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O stratiform clouds with moderate turbulence.
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O cumuliform clouds with little or no turbulence.
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O cumuliform clouds with moderate turbulence
Frage 6
Frage
166 . If the temperature/dewpoint spread is small and decreasing, and the temperature is 16°C, what type weather is most likely to develop?
Antworten
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O Fog or low clouds.
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O Freezing precipitation.
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O Thunderstorms.
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O Fair weather and good visibility
Frage 7
Frage
167 What types of fog depend upon wind in order to exist? [Fig.16]
Antworten
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O Advection fog and upslope fog.
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O Radiation fog and ice fog,.
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O Steam fog and ground fog.
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O Frontal fog
Frage 8
Frage
168 What clouds have the greatest turbulence?
Antworten
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O Cumulonimbus.
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O Towering cumulus.
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O Nimbostratus.
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O Altocumulus
Frage 9
Frage
169 Where does wind shear occur?
Antworten
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O At all altitudes, in all directions
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O Only at higher altitudes.
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O Only at lower altitudes.
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O In the vicinity of mountains
Frage 10
Frage
170 One in-flight condition necessary for structural icing to form is
Antworten
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O visible moisture.
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O small temperature/dewpoint spread.
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O stratiform clouds.
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O temperature below 0?C
Frage 11
Frage
171 Why is frost considered hazardous to flight?
Antworten
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O Frost spoils the smooth flow of air over the wings, thereby decreasing lifting capability
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O Frost changes the basic aerodynamic shape of the airfoils, thereby decreasing lift.
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O Frost slows the airflow over the airfoils, thereby increasing control effectiveness.
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O Frost increases the weight of the aircraft
Frage 12
Frage
172 The conditions necessary for the formation of cumulonimbus clouds are a lifting action and
Antworten
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O unstable, moist air.
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O unstable air containing an excess of condensation nuclei.
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O either stable or unstable air.
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O stable, moist air
Frage 13
Frage
173 . During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Antworten
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O Dissipating.
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O Cumulus.
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O Mature,
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O All stages
Frage 14
Frage
174 Thunderstorms reach their greatest intensity during the
Antworten
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O mature and dissipating stage
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O mature stage.
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O dissipating stage.
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O cumulus stage.
Frage 15
Frage
175 Thunderstorms which generally produce the most intense hazard to aircraft are
Antworten
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O squall line thunderstorms.
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O steady-state thunderstorms.
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O warm front thunderstorms.
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O cold front thunderstorms
Frage 16
Frage
176 . A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a
Antworten
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O squall line.
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O prefrontal system.
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O dryline.
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O occlussion
Frage 17
Frage
177 If there is thunderstorm activity in the vicinity of an airport at which you plan to land, which hazardous atmospheric phenomenon might be expected on the landing approach?
Antworten
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O Wind-shear turbulence.
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O Precipitation static.
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O Steady rain.
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O Hail
Frage 18
Frage
178 Which weather phenomenon is always associated with a thunderstorm?
Antworten
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O Lightning.
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O Heavy rain.
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O Hail.
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O Wind shear
Frage 19
Frage
179 Wingtip vortices are created only when an aircraft is
Antworten
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O developing lift.
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O operating at high airspeeds.
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O heavily loaded.
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O operating at low airspeeds
Frage 20
Frage
180 Cumulus family is designated mainly into three formal appearance, according to their size.
(i) Humilis, (ii) Mediocris and (iii) Congestus.
Find the correct answer.
Antworten
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O (i) clouds with generally flattened bases and slight vertical growth. (ii) clouds with comparable size of base and height dimensions. (iii) clouds with great vertical extend that form a distance may resemble a head of cauliflower.
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O (i) clouds with comparable size of base and height dimensions. (ii) clouds with generally flattened bases and slight vertical growth. (iii) clouds with great vertical extend that form a distance may resemble a head of cauliflower
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O (i) clouds with great vertical extend that form a distance may resemble a head of cauliflower (ii) clouds with generally flattened bases and slight vertical growth (iii) ) clouds with comparable size of base and height dimensions.
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O None of those are correct, since this description is applicable only to stratiformi clouds.
Frage 21
Frage
181 . Altocumulus Castellanus are clouds that show vertical development and produce towerlike extensions often in the shape of small castles and being associated with:
Antworten
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O Bad weather approaching, due to high winds and instability.
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O Stable weather, due they block the high cold winds.
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O Fair weather, generally.
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O None of those
Frage 22
Frage
182 . The basic scale used by the World Meteorological Organisation for the measurement of temperature is the:
Antworten
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O Celsius scale
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O Fahrenheit scale
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O Absolute scale
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O Kelvin scale
Frage 23
Frage
183 With reference to cloud amounts, the abbreviation BKN means:
Antworten
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O Between 5 & 7 oktas of cloud present
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O Between 3 & 4 oktas of cloud present
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O Between 1 & 2 oktas of cloud present
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O The information is unreliable
Frage 24
Frage
184 With regard to latent heat which of the following is true:
Antworten
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O When water changes from a vapour to a liquid latent heat is released
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O When water changes from a solid to a liquid latent heat is released
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O When water changes from a vapour to a solid latent heat is absorbed
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O When water changes from a solid to a vapour latent heat is released
Frage 25
Frage
185 An aircraft flying at a constant pressure altitude flies from an area of cold
mean temperature to an area of warm mean temperature in the northern
hemisphere. Which of the following is correct:
Antworten
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O The aircraft will climb in true height
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O The aircraft will drift to the left
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O The aircraft will descend in true height
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O The aircraft will encounter a thermal tailwind
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