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Quiz von tsampikos pompou, aktualisiert more than 1 year ago
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Frage 1
Frage
441 Why does the wind have a tendency to flow parallel to the isobars above the friction level?
Antworten
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O Friction has a very low influence and Coriolis force tends to counterbalance the horizontal pressure gradient.
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O Centrifugal force acts perpendicular to a line connecting the highs and lows.
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O Friction of the air with the Earth deflects the air perpendicular to the pressure gradient.
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O Coriolis force is zero
Frage 2
Frage
442 With regard to windflow patterns shown on surface analysis charts, when the isobars are
Antworten
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O not close together, the pressure gradient force is zero
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O close together, the pressure gradient force is greater and wind velocities are stronger.
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O close together, the pressure gradient force is slight and wind velocities are weaker.
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O not close together, the pressure gradient force is greater and wind velocities are stronger.
Frage 3
Frage
443 What causes wind?
Antworten
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O Pressure differences.
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O Air convergence
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O The Earth's rotation.
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O Instability
Frage 4
Frage
444 Which is true regarding a cold front occlusion? (Fig.33) The air ahead of the warm front……
Antworten
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O is warmer than the air behind the overtaking cold front.
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O is moister than the air behind the overtaking cold front.
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O is colder than the air behind the overtaking cold front
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O has the same temperature as the air behind the overtaking cold front
Frage 5
Frage
445 When flying into a low-pressure area in the Northern Hemisphere, the wind direction and velocity will be from the
Antworten
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O left and increasing.
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O left and decreasing.
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O right and decreasing.
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O right and increasing
Frage 6
Frage
446 . What prevents air from flowing directly from high-pressure areas to low-pressure areas?
Antworten
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O Coriolis force.
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O Surface friction.
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O Pressure gradient force.
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O Centrifugal force
Frage 7
Frage
447 The wind system associated with a low-pressure area in the Northern Hemiispfrere is
Antworten
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O a cyclone and is caused by descending cold air
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O an anticyclone and is caused by descending warm air.
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O a cyclone and is caused by Coriolis force
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O an anticyclone and is caused by Coriolis
Frage 8
Frage
450 Which is the main feature with the tropopause?
Antworten
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O Abrupt change in temperature lapse rate.
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O Constant height above the Earth.
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O Absolute upper limit of cloud formation.
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O Constant pressure
Frage 9
Frage
451 What is the standard temperature at 10,000 feet?
Antworten
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O -5 °C.
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O -15°C.
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O +5 °C.
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O -12 °C
Frage 10
Frage
452 What are the standard temperature and pressure values for sea level?
Antworten
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O 15 °C and 1013.2 hPa.
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O 59 °F and 1013.2" Hg.
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O 15 °C and 29.92 Mb.
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O 12°C and 29.92" Hg.
Frage 11
Frage
453 Which is true regarding actual air temperature and dew point temperature spread? The temperature spread
Antworten
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O decreases as the relative humidity increases.
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O remains constant when the pressure remains also constant
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O increases as the relative humidity increases
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O decreases as the relative humidity decreases
Frage 12
Frage
454 Which cloud types would indicate convective turbulence?
Antworten
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O Towering cumulus clouds
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O Stratus clouds
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O Nimbostratus clouds.
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O Cirrus clouds.
Frage 13
Frage
455 . Which of the bellow listed combination would likely result in cumuliform-type clouds, good visibility, and showery rain?
Antworten
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O Unstable, moist air and orographic lifting.
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O Stable, moist air and orographic lifting.
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O Unstable, moist air and no lifting mechanism.
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O Stable, dry air and orographic lifting
Frage 14
Frage
456 What could be the result of a cold air mass moving over a warm surface?
Antworten
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O Cumuliform clouds, turbulence, and good visibility.
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O Cumuliform clouds, turbulence, and poor visibility.
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O Stratiform clouds, smooth air, and poor visibility.
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O Stratiform cloud, smooth air and good visibility
Frage 15
Frage
457 The presence of standing lenticular altocumulus clouds is a good indication of
Antworten
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O very strong turbulence.
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O icing conditions..
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O shower on the leeward side
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O thunderstorm
Frage 16
Frage
458 Virga is best described as
Antworten
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O streamers of precipitation trailing beneath clouds which evaporates before reaching the ground.
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O wall cloud torrents trailing beneath cumulonimbus clouds which dissipate before reaching the ground.
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O turbulent areas beneath cumulonimbus clouds
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O dust and haze beneath cumulonimbus clouds
Frage 17
Frage
459 Moisture is added to a parcel of air by
Antworten
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O evaporation and sublimation
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O condensation and sublimation
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O evaporation and condensation.
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O freezing and condensation
Frage 18
Frage
460 Which of the following conditions are you most likely to encounter when approaching an active warm front at medium to low level ?
Antworten
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O Low cloud base and poor visibility.
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O Severe thunderstorms at low altitude.
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O Extreme turbulence and severe lightning striking the ground.
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O High cloud base, good surface visibility, and isolated thunderstorms.
Frage 19
Frage
462 In Central Europe when is the greatest likelihood for thunderstorms due to warm updrafts?
Antworten
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O Mid - afternoon.
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O Around midnight.
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O Early morning.
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O Late morning.
Frage 20
Frage
463 How are well separated CB clouds described on the Significant Weather Chart?
Antworten
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O OCNL CB.
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O EMBD CB.
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O FRQ CB.
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O ISOL CB.
Frage 21
Frage
464 A strong, dry and warm downslope wind, produced by prior enforced ascent of air over hills or mountains is known as a
Antworten
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O Foehn
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O Mistral
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O Bora
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O Scirocco
Frage 22
Frage
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 :
Antworten
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O 85 kt.
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O 135 kt.
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O 220 kt.
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O 170 kt.
Frage 23
Frage
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
Antworten
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O None of them.
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O 2000 ft
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O 8000 ft
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O 1800 ft
Frage 24
Frage
467 Refer on the Significant Weather Chart in Fig.15. You encounter storms mainly in the area of:
Antworten
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O Eperus and Northern Greece.
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O Pelloponese
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O Cyclades Islands.
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O Attiki
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