Index - Atpl Campus

100 item has been found

1-What relationship exists between the wind at 3000 feet and the surface wind?

050 4069 Wind

The surface wind is veered compared to the wind at 3000 feet and is usually weaker. They are practically the same, except when eddies exist, caused by obstacles The wind at 3000 feet is parallel to the isohypses and the surface wind direction is across the isobars toward the low pressure and the surface wind is weaker. They have the same direction, but the surface wind is weaker, caused by friction

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2-When in the northern hemisphere at the same latitude the distance between isobars is equal then

050 14262 Wind

the wind around a low pressure area is stronger than around a high pressure area the coriolis force in a high pressure area is smaller than the gradient force in a high pressure area the gradient wind in a low pressure area is weaker than in a high pressure area the geostrophic wind speed is less than the gradient wind speed in a low pressure area

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3-What characterizes a stationary front ?

050 2131 Air Masses and Fronts

The warm air moves at approximately half the speed of the cold air The surface wind usually has its direction perpendicular to the front The weather conditions that it originates is a combination between those of an intense cold front and those of a warm and very active front The surface wind usually has its direction parallel to the front

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4-Assume that an aircraft is flying in the northern hemisphere at the 500 hPa pressure surface on a heading of 270 degrees. Which of the following statements is correct?

050 4160 The Atmosphere

If in this pressure surface the wind comes from the direction 180 degrees, then true altitude is increasing If in this pressure surface the wind comes from the direction 090 degrees, then true altitude is increasing If in this pressure surface the wind comes from the direction 360 degrees, then true altitude is increasing If in this pressure surface the wind comes from the direction 270 degrees, then true altitude is increasing

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5-In the northern hemisphere the wind at the surface blows

050 4059 Wind

counter-clockwise around, and away from the centre of, a high pressure area. clockwise around, and away from the centre of, a low pressure area from a low pressure area to a high pressure area counter-clockwise around, and toward the centre of, a low pressure area

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6-In the Northern Hemisphere the surface wind is blowing around a low pressure:

050 1

Clockwise, oblique to the isobars outwards the low pressure center. Anti-clockwise, oblique to the isobars outwards the low pressure center. Anti-clockwise, oblique to the isobars towards the low pressure center. Clockwise, oblique to the isobars towards the low pressure center.

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7-In addition to a stable layer of air over a substantial mountain range, the conditions most favourable to the development of standing waves are

050 10893 Flight Hazards

conditional instability, wind speed constant from a direction parallel to the mountain range significant moisture loss due to precipitation, rapid lowering of the tropopause in the area of the mountain range wind speed excess of 20 kt at the surface and increasing with height, wind direction perpendicular to the general direction of the range steep dry adiabatic lapse rate, wind speed increasing and changing direction rapidly with increase in height

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8-Coriolis force in the Northern Hemisphere will cause moving air to be apparently deflected to:

050 1

the left and cause the wind to blow slightly across the isobars at about 2000 ft. agl. the right and cause the wind to blow slightly across the isobars at about 2000 ft. agl. the left and cause the wind to blow parallel to the isobars at about 2000 ft. agl. the right and cause the geostrophic wind to blow parallel to the isobars at about 2000 ft. agl.

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9-What is the most significant difference between an equatorial jet stream and all the other jet streams ?

050 1989 Uncategorized Wind

Horizontal dimension. Wind speed. Vertical dimension. Wind direction.

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10-Which of these statements best describes the weather most likely to be experienced at 1500 UTC?
TAF LSZH 211322 22018G35KT 9999 SCT012 BKN030 BECMG 1315 25025G45KT TEMPO 1720 4000 +SHRA BKN025TCU BECMG 2022 25015KT T1815Z T1618Z =

050 2598 Meteorological Information

Severe rainshowers, meteorological visibility 4000 metres, temperature 15°C, gusts up to 35 knots. Visibility 10 kilometres or more, main cloudbase 1200 feet, gusts up to 45 knots. Visibility 10 kilometres or more, main cloudbase 3000 feet, wind 250°, temperature 18°C. Visibility 4000 metres, gusts up to 25 knots, temperature 18°C.

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11-In which approximate direction does the centre of a non-occluded frontal depression move?

050 1269 Air Masses and Fronts

In the direction of the isobars behind the cold front. In the direction of the isobars ahead of the warm front. In the direction of the warm sector isobars. In the direction of the sharpest pressure increase.

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12-What characteristics will the surface winds have in an area where the isobars on the weather map are very close together?

050 13622 Wind Uncategorized

Strong and flowing somewhat across the isobars. Very weak but gusty and flowing somewhat across the isobars. Moderate and flowing parallel to the isobars. Strong and flowing parallel to the isobars.

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13-What characteristics will the surface winds have in an area where the isobars on the weather map are very close together?

050 1225 Wind Uncategorized

Moderate and flowing parallel to the isobars. Strong and flowing parallel to the isobars. Very weak but gusty and flowing somewhat across the isobars. Strong and flowing somewhat across the isobars.

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14-Select the true statement concerning isobars and wind flow patterns around high- and low-pressure systems that are shown on a surface weather chart.

050 2180 Wind

When the isobars are far apart, crest of standing waves may be marked by stationary lenticular clouds. When the isobars are close together, the pressure gradient force is greater and wind velocities are stronger. Isobars connect contour lines of equal temperature. Surface winds flow perpendicular to the isobars.

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15-The greater the pressure gradient the

050 4056 Wind

closer the isobars and the lower the temperatures further the isobars will be apart and the higher the temperature closer the isobars and the stronger the wind further the isobars will be apart and the weaker the wind

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16-Which of the following is correct regarding geostrophic wind?

050 16390 Wind

It blows parallel to straight equidistant isobars. It is the wind resulting from the vector sum of gradient wind and surface wind, such that the geostrophic wind normally blows at an angle of 20-45 degrees relative to the isobars. It blows across the isobars from high to low pressure. It blows parallel to curved isobars.

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17-After passing at right angles through a very active cold front in the direction towards the cold air, what will you encounter at FL 50, in the northern hemisphere immediately after a marked change in temperature?

050 1278 Air Masses and Fronts

An increase in tailwind. A decrease in tailwind. A veering in the wind direction. A backing in the wind direction.

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18-The most likely reason for radiation fog to dissipate or become low stratus is:

050 1089 Clouds and Fog

an increasingly stable atmosphere. a low level temperature inversion. surface cooling. increasing surface wind speed.

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19-In the northern hemisphere at 5000 ft/AGL a south-westerly wind is blowing. The surface wind at the same location is a southerly wind. What is the primary reason of difference between these two wind directions?

050 1234 Wind

The influence of warm air at the lower altitude. Stronger Coriolis force at the surface. Friction between the wind and the surface. A strong pressure gradient at higher altitudes.

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20-For an aircraft making an approach to an airfield which is not situated near high ground, in the vicinity of the active front in square 3 B, a potential hazard exists in the form of

050 13584 Flight Hazards

radiation fog clear air turbulence (CAT) low level wind shear rotor streaming

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21-What type of meteorological hazard to safe flight is most likely to be experienced during the final approach to Geneva (ETA 1200 UTC) ? TAF LSGG 020900Z 021019 18007KT 9999 SCT020 BKN100 BECMG 1114 8000 RA SCT010 OVC020 PROB30 TEMPO 1018 VRB10G25KT TSRA

050 14152 Meteorological Information

Anabatic winds Low level wind shear Radiation fog Roll cloud associated with standing waves

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22-Assuming a generalised zonal system of world climatic and wind circulation, zone "y" is an area of

050 5006 Wind

subtropical high pressure systems SE trade winds NE trade winds travelling low pressure systems

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23-Which of the following situations will be typical for the intertropical convergence zone?

050 15976 Climatology

High pressure the whole year, accompanied by strong prevailing winds. High pressure the whole year, accompanied by calm winds. Low pressure and instability. Hot, mainly dry climate.

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24-Which of the following best describes Zone A?

050 2580 Meteorological Information

Col Trough of low pressure Depression Ridge of high pressure

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25-When Air density will be lowest at the Earth's surface:

050 1

pressure is low and temperature is low pressure is high and temperature is low pressure is low and temperature is high pressure is high and temperature is high

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26-Which of the following combinations contain the greatest air density?

050 1

High pressure and low temperature. Low pressure and low temperature. Low pressure and high temperature. High pressure and high temperature.

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27-Density at the surface will be low when:

050 1

pressure is low and temperature is high. pressure is low and temperature is low. pressure is high and temperature is high. pressure is high and temperature is low.

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28-Where would you expect Cumulonimbus clouds?

050 1

over subtropical areas in Low pressure areas in High pressure areas CB formation is independent of pressure systems.

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29-Which of the following statements is correct concerning rotors below the crest of a mountain wave?

050 16770 Flight Hazards

The rotors are always visible by the presence of rotor clouds. The wind direction at the top of the rotors is opposite to the prevailing wind direction. The wind direction at the lower side of the rotors is opposite to the prevailing wind direction. The axis of these rotors is vertical.

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30-Friction between the air and the ground results in the northern hemisphere in:

050 1235 Wind

veering of the wind and increase of wind speed at the surface. veering of the wind and decrease of wind speed at the surface. backing of the wind and increase of wind speed at the surface. backing of the wind and decrease of wind speed at the surface.

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31-The vertical extent of the friction layer depends primarily on

050 4077 Wind

roughness of surface, temperature, local time temperature, local time, environmental lapse rate stability, wind speed, roughness of surface wind speed, roughness of surface, temperature

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32-Vertical wind shear is

050 4108 Uncategorized Wind

a change of vertical wind speed with horizontal distance a horizontal shear of vertical wind a change of horizontal wind direction and/or speed with height a change of horizontal wind direction and/or speed with horizontal distance

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33-Where does wind shear occur?

050 12802 Wind Uncategorized

Wind shear occurs only when there is a strong temperature inversion, or when the jetstream is associated with a strong depression. Wind shear of any significance occurs only in connection with jetstreams. At any level in the atmosphere if associated with either a change of wind direction and/or wind speed. Wind shear occurs primarily at lower altitudes in the vicinity of mountain waves.

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34-Where does wind shear occur?

050 15077 Wind Uncategorized

Wind shear occurs only when there is a strong temperature inversion, or when the jetstream is associated with a strong depression. Wind shear occurs primarily at lower altitudes in the vicinity of mountain waves. Wind shear of any significance occurs only in connection with jetstreams. At any level in the atmosphere if associated with either a change of wind direction and/or wind speed.

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35-As a result of diurnal variation radiation fog is lifted and a cloud cover is formed. Which statement is true?

050 13667 Clouds and Fog

Low stratus will develop caused by radiation in combination with low geostrophic wind speed. Stratocumulus will develop caused by insolation. Low stratus will develop caused by increasing wind speed. Layers of altocumulus will develop caused by increasing wind speed.

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36-What is a favourable synoptic situation for the development of a Scirocco?

050 10942 Climatology

Extension of the Azores high pressure area over the Alps Low pressure area in the western part of the mediterranean sea High pressure area in the western part of the Mediterranean sea High pressure area over Italy

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37-During periods of undisturbed radiation weather, overland, the

050 10878 Uncategorized Wind

surface wind speed tends to be highest during the mid afternoon angle between isobars and surface wind direction tends to be greatest in the mid afternoon wind tends to back from early morning until early afternoon surface wind speed tends to be highest at night

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38-During periods of cloudless weather over land in the northern hemisphere the

050 16722 Wind

surface wind speed tends to be highest during the mid afternoon wind tends to back from early morning until early afternoon angle between isobars and surface wind direction tends to be greatest in the mid afternoon surface wind speed tends to be highest at night

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39-Which of the following is a cause of stratus forming over flat land?

050 1215 Uncategorized Wind

Radiation during the night from the earth surface in moderate wind. Unstable air. The release of latent heat. Convection during the day.

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40-In the northern hemisphere, during periods of prolonged clear skies associated with anticyclonic conditions, the

050 4078 Wind

wind tends to back from early morning until early afternoon surface wind speed tends to be highest at night surface wind speed tends to be highest during the early afternoon angle between isobars and surface wind direction tends to be greatest in the early afternoon

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41-Select the statement that is most representative of land and sea breezes.

050 1

By night the 1000ft wind is likely to flow parallel to the coast line By day the 1000ft wind is likely to flow parallel to the coast line. The surface wind is likely to be sea to land during the night. The surface wind is likely to be from sea to land during the day.

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42-Which of the following conditions are most favourable to the formation of mountain waves ?

050 2170 Wind

Moist unstable air at mountain top and wind of less than 5 knots blowing across the mountain ridge. Either stable or unstable air at mountain top and a wind of at least 30 knots blowing parallel to the mountain ridge. Unstable air at mountain top altitude and a wind at least 20 knots blowing across the mountain ridge. Stable air at mountain top altitude and a wind at least 20 knots blowing across the mountain ridge.

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43-Troughs are extensions of

050 15972 Pressure Systems

high pressure areas and generally have large amounts of cloud low pressure areas and generally have large amounts of cloud high pressure areas and generally have small amounts of cloud low pressure areas and generally have small amounts of cloud

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44-How do you recognize a cold air pool?

050 1284 Pressure Systems

As a high pressure area aloft (e.g. on the 500 hPa chart). As a low pressure area aloft (e.g. on the 500 hPa chart). A cold air pool may only be recognized on the surface chart as a high pressure area. A cold air pool may only be recognized on the surface chart as a low pressure area.

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45-What is the difference between radiation fog and advection fog ?

050 10945 Uncategorized Wind

Radiation fog forms due to surface cooling at night in a light wind. Advection fog forms when warm humid air flows over a cold surface. Radiation fog forms due to night cooling and advection fog due to daytime cooling. Radiation fog is formed by surface cooling in a calm wind. Advection fog is formed by evaporation over the sea. Radiation fog forms only on the ground, advection fog only on the sea.

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46-What are the differences between radiation fog and advection fog ?

050 1093 Wind Uncategorized

Radiation fog is formed by surface cooling in a calm wind. Advection fog is formed by evaporation over the sea. Radiation fog forms only on the ground, advection fog only on the sea. Radiation fog forms due to surface cooling at night in a light wind. Advection fog forms when warm humid air flows over a cold surface. Radiation fog forms due to night cooling and advection fog due to daytime cooling.

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47-TAF LSZH 250600Z 250716 00000KT 0100 FG VV001 BECMG 0810 0800 VV002 BECMG 1012 23005KT 2500 BR BKN005 TEMPO 1316 6000 SCT007 = Which of these statements best describes the weather that can be expected at 1200 UTC?

050 12827 Wind Uncategorized

Visibility 800 metres, fog, wind from 230°, cloud base 500 feet Visibility 800 metres, fog, vertical visibility 200 feet, calm Visibility 6 kilometres, cloud base 500 feet, wind speed 5 knots Visibility 2,5 kilometres, mist, cloud base 500 feet, wind speed 5 knots

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48-Which of the following statements is correct regarding the variation of wind with height?

050 14957 Wind

The wind strength normally increases by a factor of 2 per 500 feet up to the 700 hPa level. The wind normally veers during climb out through the first 2000-3000 feet in the northern hemisphere. The wind normally backs during climb out through the first 2000-3000 feet in the northern hemisphere. The wind strength normally increases by a factor of 2 per 1000 feet up to the 850 hPa level.

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49-An air temperature of -15°C at the 700 hPa level over central Europe in summer is

050 2502 The Atmosphere

High Low 20°C below standard Within +/-5°C of ISA

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50-The conditions most favourable to the formation of mountain waves are

050 10916 Uncategorized Wind

wind speed less than 15 kt and wind direction at right angles to mountains - intense radiation cooling at night particularly at the higher levels wind direction parallel to the mountain range - wind speed increasing with height - extensive isothermal layer between mountain crests and the tropopause wind direction parallel to the general alignment of the mountain range - wind speed increasing with height - intense surface heating wind direction approximately at right angles to the mountain range - wind speed 30 kt and steadily increasing with height - an inversion just above the crest level with less stable air above and below

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51-The difference between geostrophic wind and gradient wind is caused by

050 4076 Wind

slope of pressure surfaces curvature of isobars horizontal temperature gradients friction

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52-A cold air pool can be best identified by means of

050 16841 Climatology

the isobars on a surface chart the isohypses on an upper air chart a GAMET report the CAT areas on a significant weather chart

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53-A METAR- EGZZ 130350Z 32005kt 0400N DZ 10/10 BCFG VV002- in plain language means:

050 1

Observed on the 13th day of the month and valid between 0300 and 0500Z, surface wind 320°/05kt, minimum visibility 4000 meters to the north, drizzle temperature+10°C, dew point + 10°C, becoming fog patches, vertical visibility 200ft. Observed on the 13th day of the month at 0350Z, surface wind 320°T/05kt, minimum visibility 400 meters to the north, moderate drizzle, temperature +10°C, dew point + 10 °C with fog patches, vertical visibility 200ft. Reported on the 13th day of the month and valid between 0300 and 0500Z, surface wind 320°/05kt, minimum visibility 400 meters to the north, drizzle temperature +10°C, becoming fog patches, vertical visibility 200ft. Reported on the 13th day of the month at 0350Z, surface wind 320°/05kt, minimum visibility 400metres to the north, drizzle, temperature +10°C dew point above 10 oc with fog patches, vertical visibility 200metres.

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54-What is the height of the lowest cloud forecast for Bangkok at ETA 1400 UTC ? TAF VTBD 271800Z 280024 VRB05KT 1200 BR TEMPO 0002 4000 BECMG 0205 9999 SCT015 BKN100 TEMPO 1118 04010G20KT 5000 TSRA SCT009 BKN014 BKN018CB BECMG 2024 6000=

050 12859 Meteorological Information

1200 feet 1800 feet 900 feet 1400 feet

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55-What is the most likely forecast lowest cloud base that can be expected during an approach to Madrid into 2300 UTC? TAF LEMD 281200Z 281812 13005KT CAVOK TEMPO 1821 8000 SCT020 SCT030 BECMG 2123 21005KT 9999 SCT015 BKN080 PROB40 TEMPO 2306 6000 SCT008

050 12848 Meteorological Information

800 feet 1500 feet 2000 feet 3000 feet

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56-What is the lowest possible cloudbase forecast for 2300 UTC?
EDDF 272200Z 280624 VRB05KT4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK

050 10946 Meteorological Information

5000 feet 500 feet 1500 feet 3000 feet

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57-What is the lowest cloud base that can be expected from the forecast for 1500 UTC ? KCHS 280430Z 280606 VRB05KT 4000 BR SCT005 OVC013 PROB40 SHRA BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK.

050 14151 Meteorological Information

3000 feet 1500 feet 1000 feet 1300 feet

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58-What is the lowest possible cloud base forecast for 2300 UTC?
EDDF 272200Z 280624 VRB05KT 4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK=

050 15411 Wind Wind Uncategorized Uncategorized

1500 feet 5000 feet 500 feet 3000 feet

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59-What is the lowest possible cloud base forecast for 2300 UTC? EDDF 272200Z 280624 VRB05KT 4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK=

050 15411

5000 feet 1500 feet 500 feet 3000 feet

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60-What lowest cloud base is most likely to be experienced during an approach into Madrid at 2300 UTC?
TAF LEMD 281200Z 281812 13005KT CAVOK TEMPO 1821 8000 SCT020 SCT030 BECMG 2123 21005KT 9999 SCT015 BKN080 PROB40 TEMPO 2306 6000 SCT008=

050 15356 Meteorological Information

2000 feet 1500 feet 800 feet 3000 feet

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61-On a route segment from A to B the highest terrain elevation is approximately 200 feet. For an instrument flight the minimum obstacle clearance is 1000 feet. The subscale of the altimeter is set to the local QNH of 1013 hPa and the temperature on the ground is -5°C. Assume a standard temperature lapse rate. What is the approximate minimum acceptable altimeter indication during the flight on this route segment?

050 15265 The Atmosphere

1100 feet. 1300 feet. 1000 feet. 1400 feet.

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62-If you have to fly through a warm front when freezing level is at 10000 feet in the warm air and at 2000 feet in the cold air, at which altitude is the probability of freezing rain the lowest ?

050 2177 Air Masses and Fronts

3000 feet 12000 feet 5000 feet 9000 feet

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63-After landing at an aerodrome (QNH 993 hPa) it is noticed that the altimeter is still set to 1013,2 hPa and that it reads 1200 feet. What is the elevation of the aerodrome above mean sea level ?

050 2524 The Atmosphere

2280 feet. 1200 feet. 660 feet. 1740 feet.

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64-You are planning to fly across a mountain range. The chart recommends a minimum altitude of 12000 feet above mean sea level. The air mass you will be flying through is an average 10°C warmer than ISA. Your altimeter is set to 1023 hPa (QNH of a nearby airport at nearly sea level). What altitude will the altimeter show when you have reached the recommended minimum altitude?

050 2522 The Atmosphere

12210 feet 11520 feet 11790 feet 11250 feet

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65-In the ICAO Standard Atmosphere (ISA), the fall in pressura with height, close to sealevel, is approximately 1 millibar for every

050 1

36 feet 27 feet. 60 feet. 45 feet.

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66-The front at the bottom of the diagram, south of position C, is

050 13565 Meteorological Information

an occlusion on the surface a cold front an occlusion above the surface a warm front

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67-One of the main reasons for radiation fog to dissipate or become low stratus is:

050 15816 Clouds and Fog

lifting against the slope of a hill. decreasing wind speed. surface cooling. surface heating.

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68-What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars ?

050 2174 Wind

Surface friction Greater atmospheric pressure at the surface Coriolis force Greater density of the air at the surface

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69-Which weather condition lowers true altitude as compared to pressure altitude to a position where flight over mountains could be dangerous?

050 1249 The Atmosphere

Cold high. Warm high. Warm depression. Cold low.

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70-Which pressure system characteristic does a trough have?

050 1

Cyclone (Low) Anticyclone (High) Cold front Col

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71-When flying at 5000 feet in the northern hemisphere over plains (flat country) with an anticyclone on the left and a depression on the right, the wind will be

050 10955 Wind

from the right. a head wind. a tail wind. from the left.

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72-Isotachs are lines joining equal

050 10901 Wind

wind speeds horizontal wind speed gradients wind speed lapse rates sea-level pressures

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73-Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant ?

050 4172 Wind

There is no cross wind There is a cross wind from the right Without knowing temperature at FL 180 this question can not be answered There is a cross wind from the left

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74-The wind which results from air cooling on the side of a valley is known as:

050 1

A valley wind An antitrptic wind An anabatic wind A katabatic wind

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75-Moderate to severe CAT is encountered especially in

050 16784 Wind

a CB the laminar part of a mountain wave the core of a jet stream an area with strongly curved, closely packed isohypses

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76-In a land- and sea-breeze circulation the land-breeze blows:

050 1231 Wind

during the night and is stronger than the sea-breeze. during the day and is weaker than the sea-breeze. during the day and is stronger than the sea-breeze. during the night and is weaker than the sea-breeze.

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77-Which of the following layers of fog above land is coded as MIFG?

050 12789 Meteorological Information

A layer of 5 feet deep. A layer of 20 feet deep. A layer of 15 feet deep. A layer of 10 feet deep.

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78-Refer to the following TAF message. LFxx 180800Z 180918 22020KT 6000 SCT015 SCT080 BECMG 1214 24025KT 2000 RA BKN009 OVC070= At 1400 UTC, the lowest cloud base will be

050 10910 Meteorological Information

between 900 and 1500 feet AMSL between 900 and 1500 feet AGL at 1500 feet AGL at 900 feet AGL

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79-Which of the following layers of fog above land is coded as MIFG?

050 15545 Meteorological Information

A layer of 15 feet deep. A layer of 10 feet deep. A layer of 20 feet deep. A layer of 5 feet deep.

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80-The family of medium clouds include altostratus, altocumulus and nimbostratus. In moderate latitudes their height of base ranges from:

050 1

2000 to 10000 feet. 3000 to 5000 feet. 6500 to 23000 feet. 2000 to 12000 feet.

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81-Above and below a low level inversion the wind is likely to

050 4171 Flight Hazards

change in direction but not in speed change significantly in speed and direction experience little or no change in speed and direction change in speed but not in direction

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82-With all other quantities being constant, the density of the atmosphere increases with increasing

050 12797 The Atmosphere

air pressure temperature stability relative humidity

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83-What change in pressure, will occur at point F, during the next hour?

050 15565 Air Masses and Fronts

A rise in pressure. A drop in pressure. Irregular fluctuations. Constant pressure.

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84-What change in pressure, will occur at point A, during the next hour?

050 1604 Air Masses and Fronts

Irregular fluctuations A drop in pressure Approximately constant pressure A rise in pressure

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85-Which typical weather condition is shown by the design for northern Italy?

050 2710 Climatology

Warm southerly wind Easterly wind Westerly wind High pressure

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86-The reason for the cooling of the parcel of air during the adiabatic process is…

050 1

pressure decrease. getting away from the earth. temperature decrease. pressure increase.

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87-Which of the following statements is true with regard to mountain waves?

050 10969 Flight Hazards

Mountain waves are not experienced beyond 100 miles downwind from initiating high ground, regardless of the height of the ground Flight with tailwind toward high ground is likely to be more hazardous than flight with headwind toward high ground Flight with headwind toward high ground is likely to be more hazardous than flight with tailwind toward high ground The absence of cloud over high ground indicates the absence of mountain waves

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88-Which of the following statements is true with regard to mountain waves?

050 13821 Flight Hazards

The absence of cloud over high ground indicates the absence of mountain waves Flight with tailwind toward high ground is likely to be more hazardous than flight with headwind toward high ground Flight with headwind toward high ground is likely to be more hazardous than flight with tailwind toward high ground Mountain waves are not experienced beyond 100 miles downwind from initiating high ground, regardless of the height of the ground

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89-Which of the following processes will increase the stability of an air mass?

050 12794 Uncategorized Wind

Warming of the air mass from below. Cooling by the underlying surface. Advection of colder air aloft. Addition of water vapour in the lower layer.

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90-The maximum vapour pressure over a flat supercooled water surface and the maximum vapour pressure over a flat ice surface of the same temperature are compared. The maximum vapour pressure is

050 10923 Thermodynamics

equal over both surfaces the same over both surfaces if the air pressure is the same smaller over the water surface greater over the water surface

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91-Which of the following processes will increase the stability of an air mass?

050 15594 Wind Uncategorized

Cooling by the underlying surface. Advection of colder air aloft. Warming of the air mass from below. Addition of water vapour in the lower layer.

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92-After a clear night cumuliform clouds are formed in the morning. Why can the base of these clouds become higher during the day?

050 13658 Clouds and Fog

Because the difference between the temperature and the dewpoint temperature at the initial condensation level becomes smaller. The wind speed is increasing, because the cold air mass changes into a warm air mass. Because the surface temperature increases. Because the stability increases.

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93-The height of the lifting condensation level is determined by

050 4050 Thermodynamics

temperature at surface and air pressure wet adiabatic lapse rate and dewpoint at the surface wind and dewpoint at the surface temperature and dewpoint at the surface

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94-Clouds, classified as being low level are considered to have bases from

050 4046 Clouds and Fog

500 to 1000 FT 100 to 200 FT 1000 to 2000 FT the surface to 6500 FT

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95-For an aircraft making an approach to an airfield located in square 3B, the most likely weather conditions are

050 13570 Meteorological Information

scattered AC base 2000 FT, good visibility showers of rain and hail low cloud, mist moderate continuous rain

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96-Tropical revolving storms do not occur in the southeast Pacific and the south Atlantic mainly because

050 1991 Pressure Systems

the southeast trade winds cross over into the northern hemisphere. of the strong southeast wind. there is no coriolis force present. of the low water temperature.

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97-In mid-latitudes, what surface weather is associated with a stationary high pressure region over land in the winter?

050 1287 Pressure Systems

Thunderstorms. The possibility of snow showers. A tendency for fog and low ST. NS with continuous rain.

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98-What type of low pressure area is associated with a surface front?

050 1268 Air Masses and Fronts

Heat low. Polar front low. A cold air pool. A low on lee side of a mountain.

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99-When the temperature and dew point are less than one degree apart the weather conditions are most likely to be

050 4086 Clouds and Fog

unlimited visibility high scattered clouds fog or low cloud clear and cool

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100-If CAVOK is reported then

050 4181 Meteorological Information

no low drifting snow is present any CB's have a base above 5000 FT no clouds are present low level wind shear has not been reported

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1-What relationship exists between the wind at 3000 feet and the surface wind?

2-When in the northern hemisphere at the same latitude the distance between isobars is equal then

3-What characterizes a stationary front ?

4-Assume that an aircraft is flying in the northern hemisphere at the 500 hPa pressure surface on a heading of 270 degrees. Which of the following statements is correct?

5-In the northern hemisphere the wind at the surface blows

6-In the Northern Hemisphere the surface wind is blowing around a low pressure:

7-In addition to a stable layer of air over a substantial mountain range, the conditions most favourable to the development of standing waves are

8-Coriolis force in the Northern Hemisphere will cause moving air to be apparently deflected to:

9-What is the most significant difference between an equatorial jet stream and all the other jet streams ?

10-Which of these statements best describes the weather most likely to be experienced at 1500 UTC?TAF LSZH 211322 22018G35KT 9999 SCT012 BKN030 BECMG 1315 25025G45KT TEMPO 1720 4000 +SHRA BKN025TCU BECMG 2022 25015KT T1815Z T1618Z =

11-In which approximate direction does the centre of a non-occluded frontal depression move?

12-What characteristics will the surface winds have in an area where the isobars on the weather map are very close together?

13-What characteristics will the surface winds have in an area where the isobars on the weather map are very close together?

14-Select the true statement concerning isobars and wind flow patterns around high- and low-pressure systems that are shown on a surface weather chart.

15-The greater the pressure gradient the

16-Which of the following is correct regarding geostrophic wind?

17-After passing at right angles through a very active cold front in the direction towards the cold air, what will you encounter at FL 50, in the northern hemisphere immediately after a marked change in temperature?

18-The most likely reason for radiation fog to dissipate or become low stratus is:

19-In the northern hemisphere at 5000 ft/AGL a south-westerly wind is blowing. The surface wind at the same location is a southerly wind. What is the primary reason of difference between these two wind directions?

20-For an aircraft making an approach to an airfield which is not situated near high ground, in the vicinity of the active front in square 3 B, a potential hazard exists in the form of

21-What type of meteorological hazard to safe flight is most likely to be experienced during the final approach to Geneva (ETA 1200 UTC) ? TAF LSGG 020900Z 021019 18007KT 9999 SCT020 BKN100 BECMG 1114 8000 RA SCT010 OVC020 PROB30 TEMPO 1018 VRB10G25KT TSRA

22-Assuming a generalised zonal system of world climatic and wind circulation, zone "y" is an area of

23-Which of the following situations will be typical for the intertropical convergence zone?

24-Which of the following best describes Zone A?

25-When Air density will be lowest at the Earth's surface:

26-Which of the following combinations contain the greatest air density?

27-Density at the surface will be low when:

28-Where would you expect Cumulonimbus clouds?

29-Which of the following statements is correct concerning rotors below the crest of a mountain wave?

30-Friction between the air and the ground results in the northern hemisphere in:

31-The vertical extent of the friction layer depends primarily on

32-Vertical wind shear is

33-Where does wind shear occur?

34-Where does wind shear occur?

35-As a result of diurnal variation radiation fog is lifted and a cloud cover is formed. Which statement is true?

36-What is a favourable synoptic situation for the development of a Scirocco?

37-During periods of undisturbed radiation weather, overland, the

38-During periods of cloudless weather over land in the northern hemisphere the

39-Which of the following is a cause of stratus forming over flat land?

40-In the northern hemisphere, during periods of prolonged clear skies associated with anticyclonic conditions, the

41-Select the statement that is most representative of land and sea breezes.

42-Which of the following conditions are most favourable to the formation of mountain waves ?

43-Troughs are extensions of

44-How do you recognize a cold air pool?

45-What is the difference between radiation fog and advection fog ?

46-What are the differences between radiation fog and advection fog ?

47-TAF LSZH 250600Z 250716 00000KT 0100 FG VV001 BECMG 0810 0800 VV002 BECMG 1012 23005KT 2500 BR BKN005 TEMPO 1316 6000 SCT007 = Which of these statements best describes the weather that can be expected at 1200 UTC?

48-Which of the following statements is correct regarding the variation of wind with height?

49-An air temperature of -15°C at the 700 hPa level over central Europe in summer is

50-The conditions most favourable to the formation of mountain waves are

51-The difference between geostrophic wind and gradient wind is caused by

52-A cold air pool can be best identified by means of

53-A METAR- EGZZ 130350Z 32005kt 0400N DZ 10/10 BCFG VV002- in plain language means:

54-What is the height of the lowest cloud forecast for Bangkok at ETA 1400 UTC ? TAF VTBD 271800Z 280024 VRB05KT 1200 BR TEMPO 0002 4000 BECMG 0205 9999 SCT015 BKN100 TEMPO 1118 04010G20KT 5000 TSRA SCT009 BKN014 BKN018CB BECMG 2024 6000=

55-What is the most likely forecast lowest cloud base that can be expected during an approach to Madrid into 2300 UTC? TAF LEMD 281200Z 281812 13005KT CAVOK TEMPO 1821 8000 SCT020 SCT030 BECMG 2123 21005KT 9999 SCT015 BKN080 PROB40 TEMPO 2306 6000 SCT008

56-What is the lowest possible cloudbase forecast for 2300 UTC?EDDF 272200Z 280624 VRB05KT4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK

57-What is the lowest cloud base that can be expected from the forecast for 1500 UTC ? KCHS 280430Z 280606 VRB05KT 4000 BR SCT005 OVC013 PROB40 SHRA BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK.

58-What is the lowest possible cloud base forecast for 2300 UTC?EDDF 272200Z 280624 VRB05KT 4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK=

59-What is the lowest possible cloud base forecast for 2300 UTC? EDDF 272200Z 280624 VRB05KT 4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK=

60-What lowest cloud base is most likely to be experienced during an approach into Madrid at 2300 UTC?TAF LEMD 281200Z 281812 13005KT CAVOK TEMPO 1821 8000 SCT020 SCT030 BECMG 2123 21005KT 9999 SCT015 BKN080 PROB40 TEMPO 2306 6000 SCT008=

62-If you have to fly through a warm front when freezing level is at 10000 feet in the warm air and at 2000 feet in the cold air, at which altitude is the probability of freezing rain the lowest ?

63-After landing at an aerodrome (QNH 993 hPa) it is noticed that the altimeter is still set to 1013,2 hPa and that it reads 1200 feet. What is the elevation of the aerodrome above mean sea level ?

65-In the ICAO Standard Atmosphere (ISA), the fall in pressura with height, close to sealevel, is approximately 1 millibar for every

66-The front at the bottom of the diagram, south of position C, is

67-One of the main reasons for radiation fog to dissipate or become low stratus is:

68-What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars ?

69-Which weather condition lowers true altitude as compared to pressure altitude to a position where flight over mountains could be dangerous?

70-Which pressure system characteristic does a trough have?

71-When flying at 5000 feet in the northern hemisphere over plains (flat country) with an anticyclone on the left and a depression on the right, the wind will be

72-Isotachs are lines joining equal

73-Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant ?

74-The wind which results from air cooling on the side of a valley is known as:

75-Moderate to severe CAT is encountered especially in

76-In a land- and sea-breeze circulation the land-breeze blows:

77-Which of the following layers of fog above land is coded as MIFG?

78-Refer to the following TAF message. LFxx 180800Z 180918 22020KT 6000 SCT015 SCT080 BECMG 1214 24025KT 2000 RA BKN009 OVC070= At 1400 UTC, the lowest cloud base will be

79-Which of the following layers of fog above land is coded as MIFG?

80-The family of medium clouds include altostratus, altocumulus and nimbostratus. In moderate latitudes their height of base ranges from:

10-Which of these statements best describes the weather most likely to be experienced at 1500 UTC?
TAF LSZH 211322 22018G35KT 9999 SCT012 BKN030 BECMG 1315 25025G45KT TEMPO 1720 4000 +SHRA BKN025TCU BECMG 2022 25015KT T1815Z T1618Z =

56-What is the lowest possible cloudbase forecast for 2300 UTC?
EDDF 272200Z 280624 VRB05KT4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK

58-What is the lowest possible cloud base forecast for 2300 UTC?
EDDF 272200Z 280624 VRB05KT 4000 BR SCT005 OVC013 BECMG 1314 9000 SHRA OVC015 PROB40 TEMPO 1416 VRB15G25KT 1600 TSRA OVC010CB BECMG 1618 26010KT BKN030 BECMG 2122 CAVOK=

60-What lowest cloud base is most likely to be experienced during an approach into Madrid at 2300 UTC?
TAF LEMD 281200Z 281812 13005KT CAVOK TEMPO 1821 8000 SCT020 SCT030 BECMG 2123 21005KT 9999 SCT015 BKN080 PROB40 TEMPO 2306 6000 SCT008=