Test 120 exam questions on Meteorology for ATPL - Airline Transport Pilot license

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1 - What is the approximate maximum diameter of a the area affected by damaging winds at the surface caused by a microburst ? 20 km 400 m 50 km 4 km

2 - Which of the following are favourable conditions for the formation of freezing rain? Cold air aloft from which hail is falling into air that is warm. Water droplets falling from cold air aloft with a temperature below 0°C into air with a temperature above 0� An isothermal layer aloft with a temperature just above 0°C through which rain is falling. Warm air aloft from which rain is falling into air with a temperature below 0°

3 - The passage of a warm front can be associated with areas of fog. The types of fog just in advance and just after the passage are respectively Frontal fog and advection fog Advection fog and steaming fog Arctic smoke and frontal fog Advection fog and radiation fog

4 - The turbulence which occurs at high flight levels (above FL 250) is mainly of the type Clear Air Turbulence. In what way can moderate to severe Clear Air Turbulence affect an aircraft, the flight and the passengers? The turbulence can be resembled with the roughness of a washing-board (small scale) and will not have influence on the aircraft and its solidity, but will make flight a little more difficult. The passengers will seldom notice anything of this turbulence. The turbulence is a large scale one (waving) so that the aircraft will be difficult to manoeuvre. The passengers will feel some discomfort. The turbulence is wave like which makes the flight unpleasant for the passengers but the manoeuvring will not be affected essentially. The turbulence is a small scale one and can cause damage. The manoeuvring of the aircraft will be made more difficult or even impossible. For the passengers the flight will be unpleasant.

5 - An aircraft maintains a constant indicated altitude of 5500 FT from A (1050 FT/AMSL - QNH 968 hPa) to B (650 FT/AMSL - QNH 1016 hPa). Assuming that the altimeter subscale setting remains unchanged at 968 hPa, the height of the aircraft above the surface at B will be 6146 FT 7446 FT 4854 FT 6796 FT

6 - Which of the following is typical for the passage of an active cold front in the summer? Rapid drop in pressure once the front has passed Mainly layered clouds Rapid increase in temperature once the front has passed Mainly towering clouds

7 - Absolute instability in the atmosphere will occur when the environmental lapse rate is Less than saturated adiabatic lapse rate Greater than both saturated adiabatic lapse rate and dry adiabatic lapse rate Greater than saturated adiabatic lapse rate but less than dry adiabatic lapse rate Less than both saturated adiabatic lapse rate and dry adiabatic lapse rate

8 - Which type of air mass never occurs over central Europe ? Arctic air Equatorial air Tropical air Polar air

9 - What type of fog is most likely to form over flat land during a clear night, with calm or light wind conditions ? Advection. Radiation. Orographic. Steam.

10 - In relation to the polar front jet stream, the greatest rate of wind shear is most likely to occur Well below the core On the tropical side of the core Close to the core on the polar side 5000 FT or more above the core

11 - On a clear summer day, turbulence caused by solar heating is most pronounced: Immediately after sunset During early morning hours before sunrise During the early afternoon About midmorning

12 - What are the characteristics of cumuliform clouds? Large water droplets, instability, turbulence, showers and mainly clear ice. Small water droplets, instability, turbulence, extensive areas of rain and rime ice. Small water droplets, stability, no turbulence and extensive areas of rain. Large water droplets, stability, no turbulence, showers and mainly rime ice.

13 - Read this description: 'After such a fine day, the ring around the moon was a bad sign yesterday evening for the weather today. And, sure enough, it is pouring down outside. The clouds are making an oppressively low ceiling of uniform grey But at least it has become a little bit warmer.' Which of these weather phenomena is being described? A blizzard A warm front A cold front

14 - Which of the following meteorological phenomenon indicates upper level instability which may lead to thunderstorm development ? AC lenticularis. AC castellanus. Red cirrus. Halo.

15 - Which type wind flows downslope becoming warmer and dryer? Valley wind. Land breeze. Anabatic wind. Foehn wind.

16 - If Paris reports a wind of 30012KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ? 33025KT 23030KT 27020KT 30025KT

17 - Supercooled droplets can be encountered In winter only in high clouds Only in winter above 10000 FT At any time of the year Only in winter at high altitude

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

19 - What is meant by an area of divergence? A frontal zone. An area where air masses are moving in. A high pressure area. An area where air masses are moving out.

20 - An aircraft flying at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1006 hPa) experiences no change to true altitude. The reason for this is that: The air at Palma de Mallorca is colder than that at Marseille The altimeters are erroneous, and need to be tested The air at Palma de Mallorca is warmer than that at Marseille One of the two QNH values may be incorrect

21 - When planning a flight at FL 60, which upper wind and temperature chart would be nearest your flight level ? 700 hPa 850 hPa 300 hPa 500 hPa

22 - In case of fronts, what cloud formation is most likely to occur at low levels when a warm air mass overrides a cold air mass? Altostratus. Nimbostratus. Cumulus. Cumulonimbus.

23 - An aircraft lands at an airport (airport elevation 540', QNH 993 hPa) with the altimeter set to 1013 hPa. What will it indicate? 1080' 0' 380' 700'

24 - In which of the following areas do surface high pressure systems usually predominate over the North Atlantic region between 30°N and 65°N and the adjoining land areas during the northern summer? Iceland, SW USA, Azores Greenland, Azores, NE Canada Greenland, SW Europe, NE Canada Azores, SE USA, SW Europe

25 - At about what geographical latitude as average is assumed for the zone of prevailing westerlies? 50N 80N 30N 10N

26 - What is the classification of the air mass affecting position 'Q' at 0600 UTC?

Polar maritime Tropical maritime Tropical continental Polar continental

27 - What conditions are most likely to lead to the formation of hill fog? High relative humidity and an unstable air mass. Clear skies, calm or light winds, with relatively low humidity. Humid stable air mass, wind blowing towards the hills. Precipitation which is lifted by the action of moderate winds striking the range.

28 - Along the West coast of India the prevailing winds are the SW monsoon in July and a SE monsoon in January NE monsoon in July and a SW monsoon in January SW monsoon in July and a NE monsoon in January SE monsoon in July and a SW monsoon in January

29 - In a mountainous area, the most hazardous flying conditions associated with standing waves are likely to be experienced On the windward side of the mountain just above the 'cap' cloud Just above the lenticular cloud on the windward side In the vicinity of the 'roll' cloud or rotor zone beneath the first wave on the leeward side Between the troughs of the waves particularly 30 NM to 50 NM downwind and close to the tropopause

30 - The QNH at an airfield located 0 metres above sea level is 1022 hPa. The air temperature is not available.What is the QFF? Less than 1022 hPa More than 1022 hPa 1022 hPa It is not possible to give a definitive answer

31 - The barometric compensator of an altimeter is locked on reference 1013.2 hPa. The aircraft has to land on a point with an elevation of 290 feet where the QNH is 1023 hPa.The reading on the altimeter on the ground will be: 20 FT. 560 FT. -10 FT. 11 FT.

32 - Examining the pictures, on which one of the tracks (dashed lines) is this cross-section to be expected?

Track B-D Track A-E Track A-D Track B-C

33 - The wind direction in a METAR is measured relative to: The 0-meridian. True North. Grid North. Magnetic North.

34 - In meteorology, which constituent is considered the most important in the atmosphere's composition? Oxygen Nitrogen Hydrogen Water vapour

35 - In temperate latitudes what weather conditions may be expected over land during the summer in the centre of a stationary high pressure zone? TS, SH CB, TS Calm winds, haze NS

36 - Where, as a general rule, is the core of the polar front jet stream to be found? Just below the cold-air tropopause. Just above the warm-air tropopause. In the tropical air mass. In the polar air mass.

37 - In a land- and sea-breeze circulation the land-breeze blows: During the day and is stronger than the sea-breeze. During the night and is weaker than the sea-breeze. During the night and is stronger than the sea-breeze. During the day and is weaker than the sea-breeze.

38 - Rime ice forms through the freezing onto aircraft surfaces of Large supercooled water drops. Water vapour. Small supercooled water drops. Snow.

39 - Which of the following circumstances most favour the development of radiation fog? Warm moist air at the windward side of a mountain Maritime tropical air flowing over cold sea Moist air over land during clear night with little wind Advection of very cold air over much warmer sea

40 - In still air the temperature decreases at an average of 1.2°C per 100 m increase in altitude. This temperature change is called: Saturated adiabatic lapse rate Environmental lapse rate Normal lapse rate Dry adiabatic lapse rate

41 - Which one of the displayed cloud forms is representative of altocumulus castellanus?

1 3 4 2

42 - Which of the following cloud is classified as low level cloud? AS CS CC ST

43 - When in the upper part of a layer and warm air is advected in, the: Stability decreases in the layer Wind will back with increasing height in the northern hemisphere Stability increases in the layer Wind speed will always decrease with increasing height in the northern hemisphere

44 - 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 From the left. From the right. A head wind. A tail wind.

45 - Stratus formed by turbulence will occur when The wind speed is less than 10 kt and the air is heated by the earth's surface The wind speed is greater than 10 kt and the condensation level is situated just above the turbulent layer In the friction layer mixing occurs by turbulence and the condensation level is situated below the top of the turbulent layer Absolute instability exists at low level

46 - An airborne weather radar installation makes it possible to detect the location of Zones of precipitation, particularly liquid-state precipitation, and also their intensity Stratocumulus and its vertical development Cumulonimbus, but provided that cloud of this type is accompanied by falls of hail All clouds

47 - Isotachs are lines joining equal Sea-level pressures Horizontal wind speed gradients Wind speeds Wind speed lapse rates

48 - How, if at all, is the relative humidity of an unsaturated air mass influenced by temperature changes? It decreases with increasing temperature. It is only influenced by the amount of water vapor. It is not influenced by temperature changes. It increases with increasing temperature.

49 - In which approximate direction does the centre of a non-occluded frontal depression move? In the direction of the sharpest pressure increase. In the direction of the isobars ahead of the warm front. In the direction of the isobars behind the cold front. In the direction of the warm sector isobars.

50 - Which types of clouds are typical evidence of stable air conditions? ST, AS CB, CC NS, CU CU, CB

51 - The boundary between polar and tropical air is known as: Tropical front. Cold front. Polar front. Warm front.

52 - An air temperature of -15°C at the 700 hPa level over central Europe in summer is: Low 20°C below standard Within +/-5°C of ISA High

53 - What type of fronts are most likely to be present during the winter in Central Europe when temperatures close to the ground are below 0°C, and freezing rain starts to fall? High level cold fronts. Cold occlusions. Cold fronts. Warm fronts, warm occlusions.

54 - Which of the following weather reports could be, in accordance with the regulations, abbreviated to 'CAVOK'? 00000KT 0100 FG VV001 11/11 Q1025 BECMG 0500 = 34004KT 7000 MIFG SCT260 09/08 Q1029 BECMG 1600 = 26012KT 8000 SHRA BKN025 16/12 Q1018 NOSIG = 27019G37KT 9999 BKN050 18/14 Q1016 NOSIG =

55 - From which of the following pieces of information can the stability of the atmosphere be derived? Surface temperature Environmental lapse rate Pressure at the surface Dry adiabatic lapse rate

56 - What type of clouds are associated with snow showers ? Cumulus and cumulonimbus Nimbostratus Altostratus and stratus Cumulus and altostratus

57 - Glaze or clear ice is formed when supercooled droplets are: Small and at a temperature just below freezing. Small and freeze rapidly. Large and at a temperature just below freezing. Of any size at temperatures below -35 °

58 - What is the boundary layer between troposphere and stratosphere called? Tropopause. Atmosphere. Stratosphere. Ionosphere.

59 - A wind speed of 350 kt within a jet stream core should be world-wide regarded as: Possible but a very rare phenomenon. Not unusual in polar regions. A common occurrence. Not possible.

60 - Surface temperature inversions are frequently generated by Terrestrial radiation on a calm clear night Compression causing the release of latent heat in a layer of stratiform cloud Gusting winds increasing surface friction during the day with consequent mixing at the lower levels An unstable air mass causing convection currents and mixing of the atmosphere at lower levels

61 - At which airport, is the following weather development taking place?TAF 060600Z 060716 25006KT 8000 BKN240 BECMG 0710 OVC200 BECMG 1013 23010KT 8000 OVC100 BECMG 1316 23014KT 6000 RA SCT030 OVC050 =

LOWW LFPO LEMD EDDL

62 - During which stage of thunderstorm development are rotor winds characterized by roll clouds most likely to occur ? Dissipating stage. Cumulus stage. Cumulus stage and mature stage. Mature stage.

63 - What is the approximate vertical interval which is equal to a pressure change of 1 hPa at an altitude of 5500 m? 8 m (27') 15 m (50') 64 m (210') 32 m (105')

64 - An air mass is called stable when The temperature in a given air mass decreases rapidly with height The pressure in a given area is constant The vertical motion of rising air tends to become weaker and disappears The environmental lapse rate is high, with little vertical motion of air currents

65 - The QNH at an airfield in California located 69 metres below sea level is 1018 hPa. The air temperature is 10°C higher than a standard atmosphere. What is the QFF? Less than 1018 hPa 1018 hPa More than 1018 hPa It is not possible to give a definitive answer

66 - Which of the following describes a warm occlusion? The air mass ahead of the front is drier than the air mass behind the front The air mass behind the front is more unstable than the air mass ahead of the front The warmer air mass is ahead of the original warm front The coldest air mass is ahead of the original warm front

67 - The height and the temperature of the tropopause are respectively in the order of 8 km and - 75°C over the poles 8 km and -40°C over the equator 16 km and -40°C over the poles 16 km and -75°C over the equator

68 - For the same pressure gradient at 60°N, 50°N and 40°N the speed of the geostrophic wind will be: Greatest at 60°N. The same at all latitudes. Least at 50°N. Greatest at 40°N.

69 - Which jet stream blows all year round, over the northern hemisphere? The arctic jet stream The polar night jet stream The subtropical jet stream The equatorial jet stream

70 - An outside air temperature of -35°C is measured while cruising at FL 200. What is the temperature deviation from the ISA at this level? 10°C warmer than IS 5°C warmer than IS 10°C colder than IS 5°C colder than IS

71 - What characteristics will the surface winds have in an area where the isobars on the weather map are very close together? Very weak but gusty and flowing across the isobars. Strong and flowing across the isobars. Moderate and flowing parallel to the isobars. Strong and flowing parallel to the isobars.

72 - The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately 1°C 1.5°C 0.6°C 0.35°C

73 - What are squall lines? The surface weather associated with upper air troughs. Unusual intensive cold fronts. The paths of tropical revolving storms. Bands of intensive thunderstorms.

74 - The Bora is a Squally warm katabatic wind which occurs mainly in summer Cold katabatic wind with gusts associated with a maritime air mass Cold katabatic wind with the possibility of violent gusts Cold katabatic wind always associated with clouds and heavy showers

75 - 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? 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 360 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 270 degrees, then true altitude is increasing

76 - Which statement is correct regarding the ICAO Standard Atmosphere ? At MSL temperature is 10°C and the decrease in temperature with height is 1°C per 100m At MSL temperature is 15°C and the decrease in temperature with height is 1°C per 100m At MSL pressure is 1013.25 hPa and the decrease of temperature with height is 1°C per 100m At MSL temperature is 15°C and pressure is 1013.25hPa

77 - How are the air masses distributed in a cold occlusion ? The coldest air in front of and the warm air behind the occlusion The less cold air is above ground level. The coldest air in front of and the less cold air is behind the occlusion The warm air mass is above ground level.

78 - Supercooled droplets can occur in: Clouds but not in precipitation Precipitation but not in clouds Clouds, fog and precipitation Clouds but not in fog

79 - The core of the polar front jet stream is usually located in the Polar air below the tropopause Polar air above the tropopause Tropical air above the tropical tropopause Tropical air below the tropopause

80 - If you are flying at FL 300 in an air mass that is 15°C warmer than a standard atmosphere, what is the outside temperature likely to be? -60°C -45°C -15°C -30°C

81 - The temperature at FL 110 is -5°C. What will the temperature be at FL 50 if the ICAO standard lapse rate is applied ? +3°C +7°C What will the temperature be at FL 50 if the ICAO standard lapse rate is applied ? +3°C +7°C -3°C 0°C

82 - Which of the following conditions are you most likely to encounter when approaching an active warm front at medium to low level ? Low cloud base and poor visibility. High cloud base, good surface visibility, and isolated thunderstorms. Extreme turbulence and severe lightning striking the ground. Severe thunderstorms at low altitude.

83 - Isobars on a surface chart are lines of equal QFE QNE QFF QNH

84 - What name is given to the jet stream lying across India (A)?

Polar front jet stream. Arctic jet stream. Tropical jet stream. Sub-tropical jet stream.

85 - A cumulus congestus is: A remnant of a CB A cumulus with little vertical development A cumulus that is of great vertical extent A cumulus that only occurs in association with the ITCZ

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

87 - Precipitation in the form of showers occurs from Stratified clouds Convective clouds Clouds containing only ice crystals Cirro-type clouds

88 - Contour heights are: True heights AGL. Indicated heights above 1013,25 mb. True heights AMSL. Do not indicate heights at all.

89 - Steady precipitation, in contrast to showery precipitation falls from Convective clouds with little or no turbulence Stratiform clouds with little or no turbulence Convective clouds with moderate turbulence Stratiform clouds with severe turbulence

90 - A significant inversion at low height is a characteristic of: The passage of cold front Advection fog Nocturnal radiation Cumulus clouds

91 - You are flying at FL 130, and your true altitude is 12000 FT. What is the temperature deviation from that of the standard atmosphere at FL 130 (QNH 1013,2 hPa) ? ISA +20°C ISA +/-0°C ISA +12°C ISA -20°C

92 - Vertical wind shear is A change of horizontal wind direction and/or speed with height A horizontal shear of vertical wind A change of horizontal wind direction and/or speed with horizontal distance A change of vertical wind speed with horizontal distance

93 - How does temperature vary with increasing altitude in the ICAO standard atmosphere below the tropopause? Increases Decreases Remains constant At first it increases and higher up it decreases

94 - What is the approximate composition of the dry air by volume in the troposphere? 88 % oxygen, 9 % nitrogen, and the rest other gasses 10 % oxygen, 89 % nitrogen, and the rest other gasses 50 % oxygen, 40 % nitrogen, and the rest other gasses 21 % oxygen, 78 % nitrogen, and the rest other gasses

95 - Which type of fog is likely to form when air having a temperature of 15°C and a dew point of 12°C blows at 10 KT over a sea surface having temperatures of 5°C? Radiation fog Advection fog Frontal fog Steam fog

96 - When visibility is reduced by water droplets to less than 1000 metres it is classified as Dust fog Fog Mist Haze

97 - The temperature at 10000 FT in the ICAO Standard Atmosphere is: 0°C -5°C -35°C -20°C

98 - Thunderstorms are often preceded by: Nimbostratus Altocumulus Castellanus Altocumulus Lenticularis Altostratus

99 - What will be the effect on the reading of an altimeter of an aircraft parked on the ground during the period following the passage of an active cold front? It will have increased It will remain unchanged It will show a small increase or decrease It will have decreased

100 - Tropical revolving storms do not occur in the southeast Pacific and the south Atlantic because There is no coriolis force present. Of the strong southeast wind. Of the low water temperature. The southeast trade winds cross over into the northern hemisphere.

101 - Flight Zurich to Rome, ETD 1600 UTC, ETA 1800 UTC. At what flight level would you first expect to encounter clear air turbulence on the climb out from Zurich? FL 220 FL 140 At what flight level would you first expect to encounter clear air turbulence on the climb out from Zurich? FL 220 FL 140 FL 320 FL 160[see Annex]

102 - What are the typical differences with regard to the temperature and humidity between an air mass with its origin in the Azores and an air mass with its origin over northern Russia ? The North-Russian air is colder and more humid than the air of the Azores. The air of the Azores is warmer and more humid than the North-Russian air. The North-Russian air is warmer and dryer than the air of the Azores. The air of the Azores is warmer and dryer than the North-Russian air.

103 - Which of the following is the definition of relative humidity ? Ratio between the actual mixing ratio and the saturation mixing ratio X 100 Ratio between water vapour (g) and air (kg) X 100 Ratio between water vapour pressure and atmospheric pressure X 100 Ratio between air temperature and dewpoint temperature X 100

104 - Which degree of aircraft turbulence is determined by the following ICAO description?'There may be moderate changes in aircraft attitude and/or altitude but the aircraft remains in positive control at all times. Usually, small variations in air speed. Changes in accelerometer readings of 0.5 to 1.0 g at the aircraft's centre of gravity. Occupants feel strain against seat belts. Loose objects move about. Food service and walking are difficult.' Severe. Light. Violent. Moderate.

105 - What type of weather can usually be expected in a polar maritime air mass over central Europe in the daytime during summer? Sky clear. Showers and good visibility. Drizzle and low stratus. Continuous rain and poor visibility.

106 - What weather conditions are expected at Paris airport (LFPO) around 0550 UTC?

26012KT 9999 SCT025 SCT040 14/09 Q1018 TEMPO 5000 SHRA = 23014KT 3000 +RA SCT008 OVC025 15/13 Q1004 NOSIG = 20004KT 8000 SCT110 SCT250 22/08 Q1016 NOSIG = 22020G36KT 1500 TSGR SCT004 BKN007 BKN025CB 18/13 Q1009 BECMG NSW =

107 - The following temperatures have been observed over a station at 1200 UTC. Assume the station is at MSL. Height in feet. Temperature in degrees C.20000.-12 18000.-11 16000.-10 14000.-10 12000.-6 10000.-2 8000. +2 6000. +6 4000. +122000. +15 surface+15.Which of the following statements is correct ? The height of the freezing level over the station is approximately 12000 FT. Assuming that the MSL pressure is 1013.25 hPa the true altitude of an aircraft would actually be higher than the indicated altitude. Assume the station is at MSL. Height in feet. Temperature in degrees 20000.-12 18000.-11 16000.-10 14000.-10 12000.-6 10000.-2 8000. +2 6000. +6 4000. +122000. +15 surface+15.Which of the following statements is correct ? The height of the freezing level over the station is approximately 12000 FT. Assuming that the MSL pressure is 1013.25 hPa the true altitude of an aircraft would actually be higher than the indicated altitude. The layer between 16000 and 18000 FT is absolutely unstable The temperature at 10000 FT is in agreement with the temperature in the ICAO Standard Atmosphere.

108 - What is a radiosonde? Equipment used for determining upper winds (velocity and direction) by transmitting different radio waves and measuring the amount of the reflected waves by the moving air. These values correlate to the speed and direction of the wind. Instrument intended to be carried by a balloon up through the atmosphere, equipped with devices to measure meteorological variables and provided with a radio transmitter for sending this information to the observing station. A meteorological station on ground or water at which measurements of meteorological variables are made automatically and a radio transmitter sends automatically this information to a meteorological centre. These data from such a station are indicated in a METAR by the term auto. Equipment used for determining upper winds only (velocity and direction) by tracking a free balloon by electronic means at the observing station.

109 - When water evaporates into unsaturated air: Heat is absorbed Relative humidity is decreased Relative humidity is not changed Heat is released

110 - How does moderate turbulence affect an aircraft? Large, abrupt changes in altitude or attitude occur but the aircraft may only be out of control momentarily. Changes in altitude or attitude occur but the aircraft remains in positive control at all times. Continued flight in this environment will result in structural damage. Rapid and somewhat rhythmic bumpiness is experienced without appreciable changes in altitude or attitude.

111 - What weather conditions are prevalent during the summer, over the North sea, approximately 300 km behind a quickly moving cold front? Showers and thunderstorms. Rain covering a large area, 8 oktas NS. Cloud cover mostly scattered, isolated showers. 8 oktas CS, AS without precipitation.

112 - Frontal fog is most likely to occur In rear of a warm front In advance of a warm front In winter in the early morning In summer in the early morning

113 - Normally, temperature readings are taken at a height of ___ in a Stevenson screen. 2 m 40 cm 10 m 4 m

114 - Which statement is true for hurricanes in the North Atlantic? The diameter is 50-500 m They intensify rapidly after landfall Their greatest frequency of occurrence is in winter From the earth's surface up to the tropopause the core is warmer than its surroundings

115 - In order to reduce QFE to QNH, which of the following item(s) must be known ? Temperature at the airfield Elevation of the airfield and the temperature at MSL Elevation of the airfield Elevation of the airfield and the temperature at the airfield

116 - Considering the North Atlantic area north of 60°N during winter, the mean height of the tropopause is approximately: 56000' 37000' 29000' 20000'

117 - What will be the effect on the reading of an altimeter of an aircraft parked on the ground shortly before an active cold front passes? It will remain unchanged. It will be decreasing. It will be increasing. It will fluctuate up and down by about +/- 50 feet.

118 - An aircraft is flying at FL 180 in the northern hemisphere with a crosswind from the left. Which of the following is correct concerning its true altitude ? It remains constant It increases Without knowing temperatures at FL 180 this question can not be answered. It decreases

119 - Which weather chart gives information about icing? Significant weather chart. 700 hPa chart. 500 hPa chart. Surface chart.

120 - Which jet stream is connected with a surface front system? The subtropical jet stream The easterly jet stream The equatorial jet stream The polar front jet stream

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Exam simulation Meteorology ATPL - Airline Transport Pilot license

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