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6 ATTENT. METEO. EXAM. PREP.

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6 ATTENT. METEO. EXAM. PREP.

6 ATTENT. METEO. EXAM. PREP.

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Pregunta 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……………………………………….?"

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 2 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 3 de 28

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 4 de 28

1

427 The Sirocco occurs:

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 5 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 6 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 7 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 8 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 9 de 28

1

434 Tropical maritime air brings to Europe:

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 10 de 28

1

436 The upper winds in Europe are predominately:

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 11 de 28

1

438 Syberian anticyclone is :

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 12 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 13 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 14 de 28

1

443 What causes wind?

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 15 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 17 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 18 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 19 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 20 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 21 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 22 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 23 de 28

1

458 Virga is best described as

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 24 de 28

1

459 Moisture is added to a parcel of air by

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 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 ?

Selecciona una de las siguientes respuestas posibles:

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.

Explicación

Pregunta 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 :

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 28 de 28

1

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

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