5836533
Descrição
Quiz por tsampikos pompou, atualizado more than 1 year ago
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Criado por tsampikos pompou
mais de 8 anos atrás
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Questão 1
Questão
161 The suffix "nimbus " used in naming clouds, means
Responda
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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
Questão 2
Questão
162 .The boundary between two, different air masses is referred to as a
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O front.
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O frontolysis.
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O frontogenesis.
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O occlusion
Questão 3
Questão
163 . One of the most easily recognized discontinuities across a front is
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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
Questão 4
Questão
164 . One weather phenomenon which will always occur when flying across a front is a change in the
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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
Questão 5
Questão
165 Steady precipitation preceding a front is an indication of
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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
Questão 6
Questão
166 . If the temperature/dewpoint spread is small and decreasing, and the temperature is 16°C, what type weather is most likely to develop?
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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
Questão 7
Questão
167 What types of fog depend upon wind in order to exist? [Fig.16]
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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
Questão 8
Questão
168 What clouds have the greatest turbulence?
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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
Questão 9
Questão
169 Where does wind shear occur?
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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
Questão 10
Questão
170 One in-flight condition necessary for structural icing to form is
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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
Questão 11
Questão
171 Why is frost considered hazardous to flight?
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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
Questão 12
Questão
172 The conditions necessary for the formation of cumulonimbus clouds are a lifting action and
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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
Questão 13
Questão
173 . During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
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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
Questão 14
Questão
174 Thunderstorms reach their greatest intensity during the
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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.
Questão 15
Questão
175 Thunderstorms which generally produce the most intense hazard to aircraft are
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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
Questão 16
Questão
176 . A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a
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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
Questão 17
Questão
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?
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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
Questão 18
Questão
178 Which weather phenomenon is always associated with a thunderstorm?
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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
Questão 19
Questão
179 Wingtip vortices are created only when an aircraft is
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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
Questão 20
Questão
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.
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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.
Questão 21
Questão
181 . Altocumulus Castellanus are clouds that show vertical development and produce towerlike extensions often in the shape of small castles and being associated with:
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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
Questão 22
Questão
182 . The basic scale used by the World Meteorological Organisation for the measurement of temperature is the:
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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
Questão 23
Questão
183 With reference to cloud amounts, the abbreviation BKN means:
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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
Questão 24
Questão
184 With regard to latent heat which of the following is true:
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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
Questão 25
Questão
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:
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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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