Index - Atpl Campus

100 item has been found

1-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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2-An aircraft over Western Europe is crossing a jet stream 2500 FT below its core at right angles. While crossing, the outside temperature is increasing. The prevailing wind is

050 1571 Wind

from the left. from the right headwind. tailwind.

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3-You are flying in the northern hemisphere at 2000 FT over a flat country area. An anticyclone is ahead of you and a depression is behind you. The wind affecting you, will be

050 10981 Wind

from your right from ahead from behind from your left

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4-An aircraft is approaching under visual flight rules an airfield whose runway is parallel to the coast. When downwind over the sea, the airfield is on the right. What wind effect should be anticipated on final approach and landing during a sunny afternoon?

050 2539 Wind

Crosswind from the left Headwind Crosswind from the right Tailwind

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5-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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6-You are flying from east to west in the northern hemisphere at the 500 hPa pressure surface. Which of the following statements is correct?

050 4066 Wind

If the wind is from the north you are gaining altitude If the wind is from the south you are gaining altitude If you have a tail wind you are losing altitude If you have a head wind you are gaining altitude

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7-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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8-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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9-Which of the following is correct regarding the wind speed in a jet stream in the northern hemisphere?

050 15081 Wind

With colder air ahead when looking downwind, the wind speed increases with height, while with the colder air behind the wind speed decreases with height. With colder air to the left when looking upwind, the wind speed increases with height, while with the colder air to the right the wind speed decreases with height. With colder air behind when looking downwind, the windspeed increases with height, while with the colder air ahead the windspeed decreases with height. With colder air to the left when looking downwind, the wind speed increases with height, while with the colder air to the right the wind speed decreases with height.

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10-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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11-What is the best approximation for the wind speed at flight level 250?

050 12861 Meteorological Information

By reading wind direction and speed from the 500 hPa chart. By interpolation of the wind information available from the 500 and 300 hPa charts, while also considering the maximum wind information found on the Significant Weather Chart. By reading wind direction and speed from the 300 hPa chart. By simple interpolation of wind information available from the 500 and 300 hPa charts.

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12-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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13-What are the characteristics of the Bora ?

050 4258 Climatology

It is a very cold wind that blows mainly in winter from a north-westerly direction in the Mediterranean It is a dry and hot southerly wind experienced in the Sahara desert, that often carries dust. It is a cold and very strong wind that blows mainly in winter from a tableland downwards to the Adriatic It is a warm and moist, south-westerly wind experienced in the eastern Mediterranean, that usually carries precipitation.

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14-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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15-An easterly wave is a

050 4104 Climatology

wave in a trade wind belt, moving from east to west, with severe convective activity in rear of its trough disturbance in the higher levels associated with the equatorial easterly jet, moving from east to west, with severe convective activity in rear of its trough wave-like disturbance in the monsoon regime of India, moving from east to west, with severe convective activity ahead of its trough small scale wave disturbance in the tropics, moving from east to west, with severe convective activity ahead of its trough

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16-When would a rotor cloud be If you are flying into an area of low pressure, what drift would you expect to experience in the northern hemisphere?

050 1

Left drift None up drift Right drift

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17-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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18-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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19-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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20-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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21-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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22-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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23-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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24-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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25-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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26-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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27-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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28-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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29-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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30-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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31-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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32-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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33-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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34-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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35-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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36-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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37-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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38-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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39-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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40-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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41-When in summer calm and clear conditions exist, a station on the shore of a large body of water will experience wind

050 4055 Wind

from the water in daytime and from the land at night from the land in daytime and from the water at night continually from land to water continually from water to the land

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42-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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43-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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44-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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45-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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46-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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47-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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48-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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49-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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50-Which of the following situations will most likely lead to a stable air mass?

050 15777 Thermodynamics

Widespread convection. Cold air at higher levels and advection of warm air at lower levels. Decreasing wind and developing showers. Subsidence and/or cooling from below.

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51-An aircraft is approaching under visual flight rules an airfield (northern hemisphere) whose runway is parallel to the coast. When downwind over the sea, the airfield is on the left. What wind effect should be anticipated on final approach and landing during a sunny afternoon ?

050 14144 Wind Uncategorized

Tailwind Crosswind from the left Headwind Crosswind from the right

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52-Which one of the following statements applies to the tropopause?

050 1575 The Atmosphere

It separates the troposphere from the stratosphere It is, by definition, a temperature inversion It is, by definition, an isothermal layer It indicates a strong temperature lapse rate

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53-While crossing a jet stream at right angles in Western Europe (3000 FT below its core) and OAT is decreasing, what would be the prevailing wind?

050 2045 Wind

A headwind. Crosswind from the right A tailwind. Crosswind from the left

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54-An aircraft is flying in the southern hemisphere at low altitude (less than 2000 feet) and going directly away from a centre of low pressure. What direction, relative to the aircraft, does the wind come from ?

050 1092 Wind

From the left and slightly on the nose From the left and slightly on the tail From the right and slightly on the nose From the right and slightly on the tail

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55-How does the height of the tropopause normally vary with latitude in the northern hemisphere ?

050 127 The Atmosphere

It increases from south to north. It remains constant throughout the year. It decreases from south to north. It remains constant from north to south.

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56-In a mountain-valley wind circulation, the mountain wind blows

050 4074 Wind Uncategorized

during the day down from the mountains at night down from the mountains during the day up from the valley at night up from the valley

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57-Which of the following is true of a land breeze?

050 2538 Wind

It blows only at noon It blows by day It blows from water to land It blows from land to water

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58-An aircraft is approaching under visual flight rules an airfield (northern hemisphere) whose runway is parallel to the coast. When downwind over the sea, the airfield is on the left. What wind effect should be anticipated on final approach and landing during a sunny afternoon ?

050 2540 Wind Uncategorized

Headwind Crosswind from the left Crosswind from the right Tailwind

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59-An aircraft is approaching under visual flight rules an airfield whose runway is parallel to the coast. When downwind over the sea, the airfield is on the left. What wind effect should be anticipated on final approach and landing during a sunny afternoon ?

050 1

Crosswind from the right Tailwind Crosswind from the left Headwind

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60-What does the code R24R/P1500 mean?

050 13598 Meteorological Information

RVR RWY 24 right 1500 metres. RVR RWY 24 right above 1500 metres. RVR RWY 24 right below 1500 metres. Snow clearance in progress on RWY 24 right, useable runway length 1500 metres.

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61-What does the code R24R/P1500 mean?

050 16643 Meteorological Information

Snow clearance in progress on RWY 24 right, useable runway length 1500 metres. RVR RWY 24 right 1500 metres. RVR RWY 24 right below 1500 metres. RVR RWY 24 right above 1500 metres.

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62-On the West coast of India it can be said in general that the wind blows

050 10908

the whole year from the South East for six month from the North West and for six month from the South East the whole year from the North East for six month from the North East and for six month from the South West

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63-What is sublimation?

050 1

The change of state from ice to water vapor or from water vapor to ice The change of state from ice to water The change of state from water to water vapor The change of state from water vapor to water

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64-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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65-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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66-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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67-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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68-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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69-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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70-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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71-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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72-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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73-Which of the following is most likely to lead to the dissipation of radiation fog ?

050 1590 Clouds and Fog

Ground cooling caused by radiation during the night A marked increase in wind velocity near the ground A build up of a high pressure area resulting in adiabatic warming associated with a sinking air mass A marked decrease in wind velocity close to the ground

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74-In the lower layers of the atmosphere due to friction the wind changes direction towards the low pressure area because:

050 1099 Wind

turbulence is formed and pressure increases the pressure gradient increases turbulence is formed and pressure decreases wind speed decreases and therefore coriolis force decreases

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75-Which of the following weather conditions favour the formation of radiation fog?

050 1262 Clouds and Fog

Light wind, little or no cloud, moist air. Strong wind, little or no cloud, moist air. Light wind, extensive cloud, moist air. Light wind, extensive cloud, dry air.

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76-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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77-In an intense trough of low pressure over Iceland during wintertime the weather likely to be experienced is:

050 2342 Flight Hazards

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

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78-What meteorological conditions most favor the formation of radiation fog?

050 1

High relative humidity, light wind and clear sky. High relative humidity, moderate wind and cloudy sky. Low relative humidity, cold air and a warm surface under clear sky. Low relative humidity, no wind and clear sky.

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79-In a METAR a gust is reported when:

050 1

it is 5 kt greater than the mean wind speed. it is 20 kt greater than the mean wind speed. it is 10 kt greater than the mean wind speed. it is 15 kt greater than the mean wind speed.

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80-Snow grains

050 15675 Precipitation

are normally transparent. fall from stratus or supercooled fog. are typically formed inside a CB, where they are being tossed up and down while growing to such size that they could no longer be supported in the updraught. are mainly formed inside altostratus and nimbostratus.

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81-The eye of a hurricane

050 16373 Pressure Systems

is filled with air which is colder than the air in the surrounding regions extends from the surface to the top of the hurricane can not be spotted by satellites has a diameter of at least 100 nautical miles

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82-At which height and at what time of the year can an aircraft be affected by the equatorial jet stream?

050 13660

FL 500 from June to August. FL 400 during the winter in the southern hemisphere. FL 500 from November to February. FL 400 during the winter in the northern hemisphere.

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83-What is the direction and speed of the wind shown in the annex?

050 1

65 kt from 270 degrees 60 kt from 270 degrees 50 kt from 90 degrees 70 kt from 90 degrees

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84-After a sunny day, followed by a long clear night, you take-off from an airfield at mid-latitudes an hour before sunrise. The field is not situated close to the coast. Though the pressure gradient is rather large, the easterly surface wind is weak and makes

050 10855 Flight Hazards

a squally wind up to great heights little increase in wind speed and little veering of the wind up to an height of 5000 FT a sudden strong increase in wind speed and strong veering of the wind a short time after take-off large but gradual increase in wind speed and large but gradual veering of the wind up to a height of 5000 FT

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85-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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86-On which latitudes can the coriolis force in practice be neglected for meteorological purposes?

050 15942 Wind

From 0 to about 10 degrees north and south. From about 75 to 90 degrees north and south. From about 10 to about 30 degrees north and south. From about 30 to about 75 degrees north and south.

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87-In which situation is advection fog most likely to form?

050 15579 Wind Uncategorized

A light breeze blowing colder air out to sea. A warm moist air mass on the windward side of the mountains. Warm moist air settling over a warmer surface under no-wind conditions. An air mass moving inland from the coast in winter.

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88-In which situation is advection fog most likely to form?

050 13829 Wind Uncategorized

An air mass moving inland from the coast in winter. A light breeze blowing colder air out to sea. Warm moist air settling over a warmer surface under no-wind conditions. A warm moist air mass on the windward side of the mountains.

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89-Which of the following processes contributes to the formation of frontal fog?

050 15038 Clouds and Fog

Rain falls from the warm air into the cold air Maritime polar air flows over a warm ground Moist air flows over land during a clear night Very cold air flows over much warmer sea

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90-In what height range and at what intensity could you encounter turbulence in CAT area n°2?

050 1682 CAT

From FL 220 to FL 400, moderate From FL 240 to FL 370, light From FL 250 to FL 320, moderate From below FL 130 to FL 270, light

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91-At which altitude, at temperate latitudes, may hail be expected in connection with a CB?

050 2001 Flight Hazards

From the ground up to a maximum of FL 450. From the base of the clouds up to about FL 200. From the ground up to about FL 100. From the ground up to about FL 200.

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92-What is the main energy source of a tropical revolving storm?

050 1994 Pressure Systems

Latent heat released from condensing water vapour. The equatorial jet stream. Cold air advancing from temperate latitudes. Temperature difference between equatorial low pressure trough and subtropical high pressure belt.

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93-Which of the following zones is most likely to encounter little or no precipitation?

050 1214 Climatology

Occlusions. Frontal zones. The north side of the alps with a prevailing Foehn from the north. The north side of the alps with a prevailing Foehn from the south.

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94-Clear ice is dangerous because it

050 4145 Flight Hazards

is translucent and only forms at the leading edges spreads out and contains many air particles is not translucent and forms at the leading edges is heavy and is difficult to remove from the aircraft surfaces

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95-A gust front is

050 4114 Flight Hazards

formed by the cold air outflow from a thunderstorm another name for a cold front characterized by heavy lightning normally encountered directly below a thunderstorm

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96-Which of the following is most likely to lead to the formation of radiation fog?

050 2551 Clouds and Fog

Heat loss from the ground on clear nights Cold air passing over warm ground The passage of fronts Dry, warm air passing over warm ground

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97-What is evaporation?

050 1

The change of state from ice to water vapor or from water vapor to ice The change of state from water to water vapor The change of state from ice to water The change of state from water vapor to water

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98-The atmosphere is heated mainly by:

050 1

Exchanges of latent heat during the process of moisture in the atmosphere changing state. Direct solar energy not filtered by the ozone layer absorbed by the lower atmosphere. Heat re-radiated from the Earth's surface. Warm air from high equatorial regions spreading out and descending into more northerly and southerly latitudes.

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99-When flying in the vicinity of a range of hills lying north/ south across which the wind is blowing west to east, exposure to hazardous downdraughts is most likely to occur:

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When flying west towards the hills from the east. When flying south to north parallel to the range. When flying north to south parallel to the range. When flying east towards the range from the west.

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100-What is condensation?

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The change of state from water to water vapor The change of state from ice to water vapor or from water vapor to ice The change of state from ice to water The change of state from water vapor to water

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1-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?

2-An aircraft over Western Europe is crossing a jet stream 2500 FT below its core at right angles. While crossing, the outside temperature is increasing. The prevailing wind is

3-You are flying in the northern hemisphere at 2000 FT over a flat country area. An anticyclone is ahead of you and a depression is behind you. The wind affecting you, will be

4-An aircraft is approaching under visual flight rules an airfield whose runway is parallel to the coast. When downwind over the sea, the airfield is on the right. What wind effect should be anticipated on final approach and landing during a sunny afternoon?

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

6-You are flying from east to west in the northern hemisphere at the 500 hPa pressure surface. Which of the following statements is correct?

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

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

9-Which of the following is correct regarding the wind speed in a jet stream in the northern hemisphere?

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

11-What is the best approximation for the wind speed at flight level 250?

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

13-What are the characteristics of the Bora ?

14-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?

15-An easterly wave is a

16-When would a rotor cloud be If you are flying into an area of low pressure, what drift would you expect to experience in the northern hemisphere?

17-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

18-Isotachs are lines joining equal

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

20-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 ?

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

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

23-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

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

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

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

27-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?

28-The diurnal variation in temperature is largest when

29-The Foehn wind is a

30-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

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

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

34-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?

35-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?

36-The Foehn wind is a

37-The greater the pressure gradient the

38-The diurnal variation in temperature is largest when

39-Vertical wind shear is

40-Daily variation of the surface temperature will:

41-When in summer calm and clear conditions exist, a station on the shore of a large body of water will experience wind

42-Where does wind shear occur?

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

44-Where does wind shear occur?

45-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?

46-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:

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

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

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

50-Which of the following situations will most likely lead to a stable air mass?

51-An aircraft is approaching under visual flight rules an airfield (northern hemisphere) whose runway is parallel to the coast. When downwind over the sea, the airfield is on the left. What wind effect should be anticipated on final approach and landing during a sunny afternoon ?

52-Which one of the following statements applies to the tropopause?

53-While crossing a jet stream at right angles in Western Europe (3000 FT below its core) and OAT is decreasing, what would be the prevailing wind?

54-An aircraft is flying in the southern hemisphere at low altitude (less than 2000 feet) and going directly away from a centre of low pressure. What direction, relative to the aircraft, does the wind come from ?

55-How does the height of the tropopause normally vary with latitude in the northern hemisphere ?

56-In a mountain-valley wind circulation, the mountain wind blows

57-Which of the following is true of a land breeze?

58-An aircraft is approaching under visual flight rules an airfield (northern hemisphere) whose runway is parallel to the coast. When downwind over the sea, the airfield is on the left. What wind effect should be anticipated on final approach and landing during a sunny afternoon ?

59-An aircraft is approaching under visual flight rules an airfield whose runway is parallel to the coast. When downwind over the sea, the airfield is on the left. What wind effect should be anticipated on final approach and landing during a sunny afternoon ?

60-What does the code R24R/P1500 mean?

61-What does the code R24R/P1500 mean?

62-On the West coast of India it can be said in general that the wind blows

63-What is sublimation?

64-Which statement is correct for the southern hemisphere?

65-The Bora is a

66-Cold air pools

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

68-The intertropical convergence zone

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

70-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?

71-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?

72-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?

73-Which of the following is most likely to lead to the dissipation of radiation fog ?

74-In the lower layers of the atmosphere due to friction the wind changes direction towards the low pressure area because:

75-Which of the following weather conditions favour the formation of radiation fog?

76-Vertical wind shear is

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

78-What meteorological conditions most favor the formation of radiation fog?

79-In a METAR a gust is reported when:

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

46-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: