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6 ATTENT. METEO. EXAM. PREP.

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6 ATTENT. METEO. EXAM. PREP.

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Questão 1 de 28

1

424 . Complete the statement according to (Fig.51-54)
"The faster moving cold front in (a), overtakes the slower-moning warm front in(b). The lighter air behind the cold front rises up and over the densier air ahead of the warm front(diagr.C).This is the formation of……………………………………….?"

Selecione uma das seguintes:

O warm-type occluded front.
O cold front occlusion.
O stationary front occlusion.

Explicação

Questão 2 de 28

1

425 (Fig.40). Observing the stationary cloud, well over the mountain top, you expect for:

Selecione uma das seguintes:

O calm conditions over that height.
O fast-moving air masses to create severe turbulence upwind that cloud.
O rain to come.
O still conditions.

Explicação

Questão 3 de 28

1

426 (Fig. 41). Lendicular clouds.Choose from the following best describes.

Selecione uma das seguintes:

O Mountain waves (Ac)
O Valley clouds (Cu)
O High altitude clouds (Cs)
O Stormy weather clouds (Cb)

Explicação

Questão 4 de 28

1

427 The Sirocco occurs:

Selecione uma das seguintes:

O Ahead of a frontal depression moving east along the coast
O Due to intense heating causing convectional dust storms
O Due to the steep temperature gradient along the N. African coast
O Behind a frontal depression moving east along the coast

Explicação

Questão 5 de 28

1

428 What is the approximate freezing level over Greece in July?

Selecione uma das seguintes:

O 14000 feet.
O 12000 feet.
O 9000 feet.
O 7000 feet

Explicação

Questão 6 de 28

1

429 Tropical maritime air originating from the Azores that affects Europe is characterised by:

Selecione uma das seguintes:

O clear warm weather.
O moist unstable conditions leading to well developed CBs thunderstorms.
O good visibility at low level, with poor visibility in the middle layers.
O moist unstable conditions due to increased moisture content as the air tracks north east over the Atlantic Ocean.

Explicação

Questão 7 de 28

1

431 In Europe, away from exposed coasts, airmass thunderstorms are most likely to occur in:

Selecione uma das seguintes:

O the afternoon in summer.
O warm spells in winter.
O the evening, with Westerly winds in summer.
O the afternoon in winter

Explicação

Questão 8 de 28

1

433 Polar continental air in winter is likely to bring what type of weather to Europe?

Selecione uma das seguintes:

O Cold weather, clear skies, frost and coastal showers.
O Good weather, or stratus, sea fog and drizzle.
O Convective cloud, showers and thunderstorms
O Snow showers or hail.

Explicação

Questão 9 de 28

1

434 Tropical maritime air brings to Europe:

Selecione uma das seguintes:

O stratus, drizzle and poor visibility.
O stratus, stratocumulus, rain and poor visibility.
O cumulus, stratocumulus, showers and good visibility
O convective clouds and thunderstorms.

Explicação

Questão 10 de 28

1

436 The upper winds in Europe are predominately:

Selecione uma das seguintes:

O westerlies both in summer and winter
O westerlies in summer and easterlies in winter
O easterlies in summer and westerlies in winter
O easterlies both in summer and winter

Explicação

Questão 11 de 28

1

438 Syberian anticyclone is :

Selecione uma das seguintes:

O A long lasting phenomenon over C.Eastern Europe, triggering radically the character of greek winter.
O A typical weather of central Syberia.
O Local wind of Archangellsk, in Northern Rusia.
O Last face of winter.

Explicação

Questão 12 de 28

1

441 Why does the wind have a tendency to flow parallel to the isobars above the friction level?

Selecione uma das seguintes:

O Friction has a very low influence and Coriolis force tends to counterbalance the horizontal pressure gradient.
O Centrifugal force acts perpendicular to a line connecting the highs and lows.
O Friction of the air with the Earth deflects the air perpendicular to the pressure gradient.
O Coriolis force is zero

Explicação

Questão 13 de 28

1

442 With regard to windflow patterns shown on surface analysis charts, when the isobars are

Selecione uma das seguintes:

O not close together, the pressure gradient force is zero
O close together, the pressure gradient force is greater and wind velocities are stronger.
O close together, the pressure gradient force is slight and wind velocities are weaker.
O not close together, the pressure gradient force is greater and wind velocities are stronger.

Explicação

Questão 14 de 28

1

443 What causes wind?

Selecione uma das seguintes:

O Pressure differences.
O Air convergence
O The Earth's rotation.
O Instability

Explicação

Questão 15 de 28

1

444 Which is true regarding a cold front occlusion? (Fig.33) The air ahead of the warm front……

Selecione uma das seguintes:

O is warmer than the air behind the overtaking cold front.
O is moister than the air behind the overtaking cold front.
O is colder than the air behind the overtaking cold front
O has the same temperature as the air behind the overtaking cold front

Explicação

Questão 16 de 28

1

445 When flying into a low-pressure area in the Northern Hemisphere, the wind direction and velocity will be from the

Selecione uma das seguintes:

O left and increasing.
O left and decreasing.
O right and decreasing.
O right and increasing

Explicação

Questão 17 de 28

1

446 . What prevents air from flowing directly from high-pressure areas to low-pressure areas?

Selecione uma das seguintes:

O Coriolis force.
O Surface friction.
O Pressure gradient force.
O Centrifugal force

Explicação

Questão 18 de 28

1

447 The wind system associated with a low-pressure area in the Northern Hemiispfrere is

Selecione uma das seguintes:

O a cyclone and is caused by descending cold air
O an anticyclone and is caused by descending warm air.
O a cyclone and is caused by Coriolis force
O an anticyclone and is caused by Coriolis

Explicação

Questão 19 de 28

1

453 Which is true regarding actual air temperature and dew point temperature spread? The temperature spread

Selecione uma das seguintes:

O decreases as the relative humidity increases.
O remains constant when the pressure remains also constant
O increases as the relative humidity increases
O decreases as the relative humidity decreases

Explicação

Questão 20 de 28

1

455 . Which of the bellow listed combination would likely result in cumuliform-type clouds, good visibility, and showery rain?

Selecione uma das seguintes:

O Unstable, moist air and orographic lifting.
O Stable, moist air and orographic lifting.
O Unstable, moist air and no lifting mechanism.
O Stable, dry air and orographic lifting

Explicação

Questão 21 de 28

1

456 What could be the result of a cold air mass moving over a warm surface?

Selecione uma das seguintes:

O Cumuliform clouds, turbulence, and good visibility.
O Cumuliform clouds, turbulence, and poor visibility.
O Stratiform clouds, smooth air, and poor visibility.
O Stratiform cloud, smooth air and good visibility

Explicação

Questão 22 de 28

1

457 The presence of standing lenticular altocumulus clouds is a good indication of

Selecione uma das seguintes:

O very strong turbulence.
O icing conditions.
O shower on the leeward side
O thunderstorm

Explicação

Questão 23 de 28

1

458 Virga is best described as

Selecione uma das seguintes:

O streamers of precipitation trailing beneath clouds which evaporates before reaching the ground.
O wall cloud torrents trailing beneath cumulonimbus clouds which dissipate before reaching the ground.
O turbulent areas beneath cumulonimbus clouds
O dust and haze beneath cumulonimbus clouds

Explicação

Questão 24 de 28

1

459 Moisture is added to a parcel of air by

Selecione uma das seguintes:

O evaporation and sublimation
O condensation and sublimation
O evaporation and condensation.
O freezing and condensation

Explicação

Questão 25 de 28

1

460 Which of the following conditions are you most likely to encounter when approaching an active warm front at medium to low level ?

Selecione uma das seguintes:

O Low cloud base and poor visibility.
O Severe thunderstorms at low altitude.
O Extreme turbulence and severe lightning striking the ground.
O High cloud base, good surface visibility, and isolated thunderstorms.

Explicação

Questão 26 de 28

1

465 Refer on the Significant Weather Chart in Fig.14. that concerns flights at altitudes over 33000 ft in the area of the Mediterranean Sea, encounters Jet Stream with winds approaching the speed of about :

Selecione uma das seguintes:

O 85 kt.
O 135 kt.
O 220 kt.
O 170 kt.

Explicação

Questão 27 de 28

1

466 Refer on the Significant Weather Chart in Fig.15. For a VFR DCT flight from Kefalonia to Thessaloniki - and keeping mainly in mind the safety of flights - you choose α flight altitude of

Selecione uma das seguintes:

O None of them.
O 2000 ft
O 8000 ft
O 1800 ft

Explicação

Questão 28 de 28

1

467 Refer on the Significant Weather Chart in Fig.15. You encounter storms mainly in the area of:

Selecione uma das seguintes:

O Eperus and Northern Greece.
O Pelloponese
O Cyclades Islands.
O Attiki

Explicação

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