Index - Atpl Campus

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1-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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2-Which of the following best describes the intertropical convergence zone ?

050 1280 Climatology

The zone where the west winds meet the subtropical high pressure belt. The zone where cold fronts form in the tropics. The zone where the Harmattan meets the north-easterly trade winds over Africa. The zone where the trade winds of the northern hemisphere meet those of the southern hemisphere.

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3-The equatorial easterly jet is a jet stream that occurs:

050 1781 Wind

only in the summer of the northern hemisphere at approx. 45 000 FT during the whole year in the southern hemisphere during the whole year in the northern hemisphere only in the winter of the northern hemisphere at approx. 30 000 FT

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4-Which of the following statements concerning jet streams is correct?

050 4161 Wind Uncategorized

In the southern hemisphere only easterly jet streams occur In the northern hemisphere only westerly jet streams occur In the northern hemisphere both westerly and easterly jet streams occur In the southern hemisphere no jet streams occur

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5-How are high level condensation trails formed that are to be found occasionally behind jet aircraft ?

050 1585 Thermodynamics

Through water vapour released during fuel combustion Through a decrease in pressure, and the associated adiabatic drop in temperature at the wing tips while flying through relatively warm but humid air In conditions of low humidity, through the particles of soot contained in the exhaust gases Only through unburnt fuel in the exhaust gases

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6-For an airfield located in the British Isles, the passage of a warm front will usually be indicated by

050 10883 Air Masses and Fronts

rapid improvement in visibility, pressure falling rapidly, wind veering and increasing rise in temperature, rapid rise in pressure, wind backs and becomes gusty a fall in temperature, rise in dew point temperature, wind backing and decreasing rise in temperature, rise in dew point temperature, wind veers and decreases

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7-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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8-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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9-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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10-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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11-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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12-Which of the following circumstances most favour the development of radiation fog?

050 4095 Clouds and Fog

Warm moist air at the windward side of a mountain Advection of very cold air over much warmer sea Maritime tropical air flowing over cold sea Moist air over land during clear night with little wind

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13-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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14-What is the meaning of the following weather message?
… CNL WS WRNG 1 211130/211330=

050 16819 Meteorological Information

The first wind shear warning on the 21st of that month, issued at 1130 UTC has been cancelled at the same day at 1330 UTC. This message cancels all weather warnings issued on the 21st of January between 1130 and 1330 UTC. The first wind shear warning on the 21st of that month with an occasional intensity has a forecast validity from 1130 until 1330 UTC. The weather warning with the number 121 concerning a cyclone at low levels has a validity time from 1130 until 1330 UTC.

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15-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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16-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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17-What is a Foehn wind?

050 16396 Climatology

It is a warm and moist anabatic wind that usually carries precipitation. It is an adiabatically heated wind blowing down a mountain side. The temperature on the lee side is normally lower than on the windward side of the mountain at the same level. It is a flow of warm air up a slope of a hill caused by surface heating. It is an adiabatically heated wind blowing down a mountain side. The temperature on the lee side is normally higher than on the windward side of the mountain at the same level.

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18-The Harmattan is a

050 1784 Climatology

SW monsoonal wind causing extensive areas of advection fog along the West African coast south of 15°N. warm southerly dust-bearing wind affecting the coast of North Africa. localised depression giving squally winds. NE wind affecting north-west Africa during November to April reducing visibility in rising dust.

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19-Ahead of a warm front (northern hemisphere) the wind direction changes from the surface up to the tropopause. The effect of this change is that the wind

050 4075 Uncategorized Wind

backs in the friction layer and veers above the friction layer backs in the friction layer and backs above the friction layer veers in the friction layer and backs above the friction layer veers in the friction layer and veers above the friction layer

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20-Mark the correct statement concerning the flight through an inversion caused by subsidence.

050 15859 Flight Hazards

During climb, the reduced air density above the inversion layer will cause a certain decrease in the aircraft performance (i.e. lift and thrust) and the pilot will experience a sudden improvement of visibility. The pilot of an aircraft probably will experience a gradual increase of the cross wind component and a gradual improvement of flight visibility when breaking through the base of the inversion layer during descent. During climb, the pilot of an aircraft probably will experience a slight deterioration of flight visibility when breaking through the top of the inversion layer and the general aircraft performance will decrease. During climb, the increased air density above the inversion layer will cause a certain increase in the aircraft performance (i.e. lift and thrust) and the pilot will experience a gradual change of the cross wind component.

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21-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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22-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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23-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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24-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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25-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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26-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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27-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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28-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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29-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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30-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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31-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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32-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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33-In the North Atlantic, you can often see a series of depressions located in a row and travelling from west to east. These depressions

050 15676 Air Masses and Fronts

are residuals of tropical cyclones in the Florida area. are primarily generated by the vaporization process that takes place above the ocean. are mostly generated by convergence between the subtropical highs and the equatorial trough. are normally generated at the polar front.

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34-What will be the effect on the reading of an altimeter of an aircraft parked on the ground as an active cold front is passing?

050 2561 Air Masses and Fronts

It will fluctuate up and down by about +/- 50 feet. It will first decrease then increase. It will remain unchanged. It will first increase then decrease.

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35-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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36-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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37-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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38-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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39-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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40-You are flying north and the anvil of a CB directly ahead of you extends to the east. Which of the below is a better decision?

050 1

To penetrate inside the cloud. To circumnavigate through the east of the cloud. to fly directly below the cloud To circumnavigate through the west of the cloud.

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41-When the subscale of a pressure altimeter is set to the QFE of the destination airfield it will indicate

050 15613 The Atmosphere

more than the airfield elevation zero at landing roll out the aircraft's altitude above MSL airfield elevation at landing roll out

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42-During the formation of rime ice in flight, water droplets freeze

050 4127 Flight Hazards

rapidly and do not spread out slowly and spread out rapidly and spread out slowly and do not spread out

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43-What is divergence?

050 1

Air moving in Air moving out Descending air. Ascending air

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44-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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45-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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46-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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47-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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48-The average position of the polar front in the northern hemisphere is:

050 13813 Wind Uncategorized

located near 65°N during the whole year. more southerly during the summer than during the winter. located near 55°N during the whole year. more southerly during the winter than during the summer.

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49-The average position of the polar front in the northern hemisphere is:

050 14881 Uncategorized Wind

located near 55°N during the whole year. more southerly during the summer than during the winter. located near 65°N during the whole year. more southerly during the winter than during the summer.

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50-You depart from an airport with 5 knots of tailwind. While passing 500 ft, the wind suddenly changes to 30 knots of headwind What would you most likely expect?

050 1

Nothing would change. Climb rate increases. Climb rate decreases. Indicated Air Speed decreases.

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51-You depart from an airport with 5 knots of headwind. While passing 500 ft, the wind suddenly changes to 30 knots of tailwind. What would you most likely expect?

050 1

Climb rate decreases. Indicated Air Speed increases. Nothing would change. Climb rate increases.

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52-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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53-The most frequent wind direction in a valley caused by thermal effects is toward the:

050 1100 Wind

valley during daylight hours. mountain at night. valley during daylight as much as at night. mountain during daylight hours.

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54-A katabatic wind blows

050 1233 Wind

up the slope during the day. up the slope during the night. down the slope during the day. down the slope during the night.

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55-On a clear summer day, turbulence caused by solar heating is most pronounced

050 4150 Wind

during the early afternoon about midmorning immediately after sunset during early morning hours before sunrise

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56-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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57-Under anticyclone conditions in the northern hemisphere, with curved isobars the speed of the gradient wind is

050 5000 Wind

the same as the thermal component proportional only to the Coriolis force greater than the geostrophic wind less than the geostrophic wind

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58-In which areas are easterly waves most likely to form?

050 16312 Climatology

Just north of the prevailing westerlies In the trade wind zone In the region of the equator between 0° and 5° north or south In the subtropical high pressure belt between 20° and 35° north or south

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59-To which type of message does the following text belong?
… MBST APCH RWY26 REP AT 1510 B747 30KT ASPEEDL 2NM FNA=

050 16671 Meteorological Information

SIGMET Wind shear warning AIRMET Aerodrome warning

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60-The wind at 500ft above ground is 290/15kt and at the same position at 600ft above ground 300/22kt. How is this wind situation called?

050 16661 Meteorological Information

Gradual horizontal wind shear Severe low level turbulence Moderate vertical wind shear Severe horizontal wind shear

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61-The diurnal variation in temperature is largest when

050 13810 Wind Uncategorized

the sky is clear and the wind is strong the sky is overcast and the wind is weak the sky is overcast and the wind is strong the sky is clear and the wind is weak

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62-The Foehn wind is a

050 13809 Uncategorized Wind

cold katabatic wind cold anabatic wind warm katabatic wind warm anabatic wind

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63-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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64-Two aircraft are flying simultaneously in level flight at different flight levels on opposite tracks overhead a given position.
Aircraft A flying at FL 070 experiences a 30 kt headwind.
Aircraft B flying at FL 060 experiences a 20 kt headwind.
None of the aircraft experiences cross wind. This wind condition will be referred to as

050 15036 Flight Hazards

vertical and horizontal wind shear no wind shear since the absolute value of the difference in wind velocity per height unit is too small to fit the definition of wind shear at all horizontal wind shear only vertical wind shear only

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65-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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66-What is the effect of a strong low level inversion ?

050 64 Flight Hazards

It results in good visual conditions near the surface. It prevents vertical wind shear. It promotes vertical wind shear. It promotes extensive vertical movement of air.

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67-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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68-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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69-In the southern hemisphere what wind effect would you expect when flying from a high pressure area towards a low pressure area at FL 100?

050 1250 Wind

Tailwind with no drift. Headwind with no drift. Wind from the left. Wind from the right.

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70-The Foehn wind is a

050 4062 Wind Uncategorized

cold anabatic wind warm anabatic wind warm katabatic wind cold katabatic wind

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71-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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72-The diurnal variation in temperature is largest when

050 3741 Wind Uncategorized

the sky is overcast and the wind is strong the sky is clear and the wind is weak the sky is overcast and the wind is weak the sky is clear and the wind is strong

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73-Vertical wind shear is

050 1

horizontal variation in the horizontal wind horizontal variation in the vertical wind vertical variation in the horizontal wind vertical variation in the vertical wind

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74-Daily variation of the surface temperature will:

050 1

Be at a minimum in calm conditions Be unaffected by a change of wind speed Decrease as wind speed increases Increase as the wind speed increases.

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75-Orographic thunderstorms may occur:

050 15619 Flight Hazards

mostly between sunset and 2 a.m. almost exclusively during the daylight hours. mostly in the early morning. at any time during day and night.

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76-A surface based inversion is a characteristic of

050 4151 The Atmosphere

nocturnal radiation during clear nights cumulus clouds hill fog the passage of cold front

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77-The rate of cooling of ascending saturated air is less than the rate of cooling of ascending unsaturated air because:

050 4140 Thermodynamics

water vapour doesn't cool as rapidly as dry air water vapour absorbs the incoming heat from the sun heat is released during the condensation process moist air is heavier than dry air

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78-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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79-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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80-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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81-During July flights from Bangkok (13°N - 100°E) to Karachi (25°N - 67°E) experience an average tailwind component of 22 kt. In January the same flights, also operating at FL 370, have an average headwind of 50 kt. What is the reason for this difference?

050 2043 Climatology

The wind components correspond to the seasonal change of the regional wind system. The flights during the summer encountered, by chance, very unusual, favourable conditions. The flights happen to be in the area of the polar front jet stream. The flights in January encountered, by chance, very unusual, adverse wind conditions.

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82-During the preparation for approach to Zurich airport (1416 ft/AMSL) a pilot hears the following message on the ATIS: "Inversion warning. Inversion of 12°C between 1900 ft and 2300 ft altitude."
This message indicates that the pilot should be prepared:

050 15933 Meteorological Information

that the performance of the engine will be reduced from inversion level down to ground for fog below the inversion for wind shear just above the inversion for freezing precipitation below the inversion

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83-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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84-The degree of clear air turbulence experienced by an aircraft is proportional to the

050 2341 Flight Hazards

intensity of the solar radiation stability of the air height of the aircraft intensity of vertical and horizontal wind shear

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85-The weather most likely to be experienced at position "R" is

050 5029 Wind Uncategorized

early morning fog lifting to low stratus overcast with drizzle and hill fog increasing amounts of AS and NS - heavy rain fine and warm at first - AC Castellanus and CB in late afternoon with thunderstorms

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86-In a mountainous area, the most hazardous flying conditions associated with standing waves are likely to be experienced

050 10892 Flight Hazards

between the troughs of the waves particularly 30 NM to 50 NM downwind and close to the tropopause in the vicinity of the "roll" cloud or rotor zone beneath the first wave on the leeward side just above the lenticular cloud on the windward side on the windward side of the mountain just above the "cap" cloud

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87-The dotted line designated "Z" represents the

050 5024 Wind Uncategorized

northerly limit of the SE trade winds during January mean position of the intertropical front (ITCZ) during January northerly limit of the sub tropical jet stream during July mean position of the intertropical front (ITCZ) during July

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88-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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89-Clear ice forms as a result of

050 4152 Flight Hazards

water vapour freezing to the aircraft supercooled droplets freezing on impact ice pellets splattering on the aircraft supercooled water droplets spreading during the freezing process

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90-How does freezing rain develop?

050 1593 Precipitation

Through melting of ice crystals Through melting of snow grains Snow falls through a layer where temperatures are above 0°C Rain falls through a layer where temperatures are below 0°C

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91-Which statement is correct for the southern hemisphere?

050 12828 Wind

If the wind veers with increasing height then warm air is advected The wind veers at the passage of a cold front In the friction layer the wind backs with increasing height The jet streams are easterly

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92-The Bora is a

050 4200 Climatology

cold catabatic wind with gusts associated with a maritime air mass squally warm catabatic wind which occurs mainly in summer cold catabatic wind always associated with clouds and heavy showers cold catabatic wind with the possibility of violent gusts

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93-In a METAR message, the wind group is 23010MPS. This means:

050 10905 Meteorological Information

Wind from 230° magnetic at 10 miles per hour Wind from 230° true at 10 miles per hour Wind from 230° magnetic at 20 knots Wind from 230° true at 20 knots

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94-Cold air pools

050 10872 Uncategorized Wind

only occur in winter only occur at mid-latitudes can easily be recognized on synoptic surface charts are most evident in the temperature and wind fields of the upper levels

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95-In an intense trough of low pressure over Iceland during wintertime the weather likely to be experienced is:

050 10894 Flight Hazards

strong wind associated with an almost clear sky strong wind with subsidence at low levels light wind, good visibility and a high cloud ceiling strong wind shear, convection and snow showers

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96-The intertropical convergence zone

050 15937 Climatology

forms the boundary between tropical and equatorial air is always characterized by CB clouds with high tops nearly always coincides with the geographical equator is characterized by different wind directions on both sides of the zone

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97-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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98-An aircraft is flying from Point A to Point B at the flight level corresponding to the pressure surface of the constant pressure chart. Which of the following statements is correct?

050 14947 Wind

Wind speed over B is higher than over A The true altitude will be higher over B than over London Wind speed over A is higher than over B The true altitude will be higher over B than over A

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99-An aircraft is flying from Point A to Point B at the flight level corresponding to the pressure surface of the constant pressure chart. Which of the following statements is correct?

050 14946 Wind

The true altitude will be higher over B than over Melbourne Wind speed over A is higher than over B The true altitude will be higher over A than over B Wind speed over B is higher than over A

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100-An aircraft is flying from Point A to Point B at the flight level corresponding to the pressure surface of the constant pressure chart. Which of the following statements is correct?

050 14944 Wind

Wind speed over B is higher than over A The true altitude will be higher over A than over Madrid The true altitude will be higher over A than over B Wind speed over A is higher than over B

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

2-Which of the following best describes the intertropical convergence zone ?

3-The equatorial easterly jet is a jet stream that occurs:

4-Which of the following statements concerning jet streams is correct?

5-How are high level condensation trails formed that are to be found occasionally behind jet aircraft ?

6-For an airfield located in the British Isles, the passage of a warm front will usually be indicated by

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

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

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

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

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

12-Which of the following circumstances most favour the development of radiation fog?

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

14-What is the meaning of the following weather message?… CNL WS WRNG 1 211130/211330=

15-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?

16-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 =

17-What is a Foehn wind?

18-The Harmattan is a

19-Ahead of a warm front (northern hemisphere) the wind direction changes from the surface up to the tropopause. The effect of this change is that the wind

20-Mark the correct statement concerning the flight through an inversion caused by subsidence.

21-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=

22-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

23-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

24-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.

25-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=

26-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=

27-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=

29-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 ?

30-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 ?

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

33-In the North Atlantic, you can often see a series of depressions located in a row and travelling from west to east. These depressions

34-What will be the effect on the reading of an altimeter of an aircraft parked on the ground as an active cold front is passing?

35-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

36-Isotachs are lines joining equal

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

38-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 ?

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

40-You are flying north and the anvil of a CB directly ahead of you extends to the east. Which of the below is a better decision?

41-When the subscale of a pressure altimeter is set to the QFE of the destination airfield it will indicate

42-During the formation of rime ice in flight, water droplets freeze

43-What is divergence?

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

45-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

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

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

48-The average position of the polar front in the northern hemisphere is:

49-The average position of the polar front in the northern hemisphere is:

50-You depart from an airport with 5 knots of tailwind. While passing 500 ft, the wind suddenly changes to 30 knots of headwind What would you most likely expect?

51-You depart from an airport with 5 knots of headwind. While passing 500 ft, the wind suddenly changes to 30 knots of tailwind. What would you most likely expect?

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

53-The most frequent wind direction in a valley caused by thermal effects is toward the:

54-A katabatic wind blows

55-On a clear summer day, turbulence caused by solar heating is most pronounced

56-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

57-Under anticyclone conditions in the northern hemisphere, with curved isobars the speed of the gradient wind is

58-In which areas are easterly waves most likely to form?

59-To which type of message does the following text belong?… MBST APCH RWY26 REP AT 1510 B747 30KT ASPEEDL 2NM FNA=

60-The wind at 500ft above ground is 290/15kt and at the same position at 600ft above ground 300/22kt. How is this wind situation called?

61-The diurnal variation in temperature is largest when

62-The Foehn wind is a

63-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

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

66-What is the effect of a strong low level inversion ?

67-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?

68-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?

69-In the southern hemisphere what wind effect would you expect when flying from a high pressure area towards a low pressure area at FL 100?

70-The Foehn wind is a

71-The greater the pressure gradient the

72-The diurnal variation in temperature is largest when

73-Vertical wind shear is

74-Daily variation of the surface temperature will:

75-Orographic thunderstorms may occur:

76-A surface based inversion is a characteristic of

77-The rate of cooling of ascending saturated air is less than the rate of cooling of ascending unsaturated air because:

78-Where does wind shear occur?

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

80-Where does wind shear occur?

81-During July flights from Bangkok (13°N - 100°E) to Karachi (25°N - 67°E) experience an average tailwind component of 22 kt. In January the same flights, also operating at FL 370, have an average headwind of 50 kt. What is the reason for this difference?

14-What is the meaning of the following weather message?
… CNL WS WRNG 1 211130/211330=

16-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 =

23-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

25-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=

27-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=

59-To which type of message does the following text belong?
… MBST APCH RWY26 REP AT 1510 B747 30KT ASPEEDL 2NM FNA=

82-During the preparation for approach to Zurich airport (1416 ft/AMSL) a pilot hears the following message on the ATIS: "Inversion warning. Inversion of 12°C between 1900 ft and 2300 ft altitude."
This message indicates that the pilot should be prepared: