{
  "50_part2": [
    {
      "num": 89,
      "text": "Clouds are basically distinguished by what types?",
      "options": {
        "A": "Thunderstorm and shower clouds",
        "B": "Cumulus and stratiform clouds",
        "C": "Stratiform and ice clouds",
        "D": "Layered and lifted clouds"
      },
      "correct": "B"
    },
    {
      "num": 90,
      "text": "What weather phenomenon designated by \"2\" has to be expected on the lee side during \"Foehn\" conditions? See figure (MET-001). Siehe Anlage 1",
      "options": {
        "A": "Cumulonimbus",
        "B": "Cumulonimbus",
        "C": "Altocumulus lenticularis",
        "D": "Altocumulus Castellanus"
      },
      "correct": "C"
    },
    {
      "num": 91,
      "text": "Which type of ice forms by very small water droplets and ice crystals hitting the front surfaces of an aircraft?",
      "options": {
        "A": "Rime ice",
        "B": "Clear ice",
        "C": "Mixed ice",
        "D": "Hoar frost"
      },
      "correct": "A"
    },
    {
      "num": 92,
      "text": "Information about pressure patterns and frontal situation can be found in which chart?",
      "options": {
        "A": "Significant Weather Chart (SWC)",
        "B": "Wind chart.",
        "C": "Hypsometric chart",
        "D": "Surface weather chart."
      },
      "correct": "D"
    },
    {
      "num": 97,
      "text": "What cloud sequence can typically be observed during the passage of a warm front?",
      "options": {
        "A": "Wind becoming calm, dissipation of clouds and warming during summer; formation of extended high fog layers during winter",
        "B": "Squall line with showers of rain and thunderstorms (Cb), gusting wind followed by cumulus clouds with isolated showers of rain",
        "C": "Cirrus, thickening altostratus and altocumulus clouds, lowering cloud base with rain, nimbostratus",
        "D": "In coastal areas during daytime wind from the coast and forming of cumulus clouds, dissipation of clouds during evening and night"
      },
      "correct": "C"
    },
    {
      "num": 98,
      "text": "What phenomenon is caused by cold air downdrafts with precipitation from a fully developed thunderstorm cloud?",
      "options": {
        "A": "Electrical discharge",
        "B": "Anvil-head top of Cb cloud",
        "C": "Gust front",
        "D": "Freezing Rain"
      },
      "correct": "C"
    },
    {
      "num": 99,
      "text": "What information is NOT found on Low-Level Significant Weather Charts (LLSWC)?",
      "options": {
        "A": "Information about icing conditions",
        "B": "Front lines and frontal displacements",
        "C": "Radar echos of precipitation",
        "D": "Information about turbulence areas"
      },
      "correct": "C"
    },
    {
      "num": 101,
      "text": "Which type of cloud is associated with prolonged rain?",
      "options": {
        "A": "Altocumulus",
        "B": "Cumulonimbus",
        "C": "Nimbostratus",
        "D": "Cirrostratus"
      },
      "correct": "C"
    },
    {
      "num": 102,
      "text": "Regarding the type of cloud, precipitation is classified as...",
      "options": {
        "A": "Showers of snow and rain.",
        "B": "Prolonged rain and continuous rain.",
        "C": "Rain and showers of rain.",
        "D": "Light and heavy precipitation."
      },
      "correct": "C"
    },
    {
      "num": 103,
      "text": "What conditions are favourable for the formation of thunderstorms?",
      "options": {
        "A": "Calm winds and cold air, overcast cloud cover with St or As.",
        "B": "Warm and dry air, strong inversion layer",
        "C": "Warm humid air, conditionally unstable environmental lapse rate",
        "D": "Clear night over land, cold air and patches of fog"
      },
      "correct": "C"
    },
    {
      "num": 104,
      "text": "What can be expected for the prevailling wind with isobars on a surface weather chart showing large distances?",
      "options": {
        "A": "Low pressure gradients resulting in low prevailling wind",
        "B": "Strong pressure gradients resulting in low prevailling wind",
        "C": "Strong pressure gradients resulting in strong prevailling wind",
        "D": "Low pressure gradients resulting in strong prevailling wind"
      },
      "correct": "A"
    },
    {
      "num": 106,
      "text": "How is an air mass described when moving to Central Europe via the Russian continent during winter?",
      "options": {
        "A": "Maritime tropical air",
        "B": "Continental polar air",
        "C": "Maritime polar air",
        "D": "Continental tropical air"
      },
      "correct": "B"
    },
    {
      "num": 107,
      "text": "What clouds and weather can typically be observed during the passage of a cold front?",
      "options": {
        "A": "Wind becoming calm, dissipation of clouds and warming during summer; formation of extended high fog layers during winter",
        "B": "Cirrus, thickening altostratus and altocumulus clouds, lowering cloud base with rain, nimbostratus",
        "C": "In coastal areas during daytime wind from the coast and forming of cumulus clouds, dissipation of clouds during evening and night",
        "D": "Strongly developed cumulus clouds (Cb) with showers of rain and thunderstorms, gusting wind followed by cumulus clouds with isolated showers of rain"
      },
      "correct": "D"
    },
    {
      "num": 108,
      "text": "What danger is most immenent when an aircraft is hit by lightning?",
      "options": {
        "A": "Explosion of electrical equipment in the cockpit",
        "B": "Surface overheat and damage to exposed aircraft parts",
        "C": "Rapid cabin depressurization and smoke in the cabin",
        "D": "Disturbed radio communication, static noise signals"
      },
      "correct": "B"
    },
    {
      "num": 109,
      "text": "What is referred to as mountain wind?",
      "options": {
        "A": "Wind blowing down the mountain side during the night",
        "B": "Wind blowing uphill from the valley during the night.",
        "C": "Wind blowing uphill from the valley during daytime.",
        "D": "Wind blowing down the mountain side during daytime."
      },
      "correct": "A"
    },
    {
      "num": 113,
      "text": "The saturated adiabatic lapse rate should be assumed with a mean value of:",
      "options": {
        "A": "1,0° C / 100 m.",
        "B": "0,6° C / 100 m.",
        "C": "2° C / 1000 ft.",
        "D": "0° C / 100 m."
      },
      "correct": "B"
    },
    {
      "num": 114,
      "text": "Extensive high pressure areas can be found throughout the year ...",
      "options": {
        "A": "In tropical areas, close to the equator.",
        "B": "In areeas showing extensive lifting processes.",
        "C": "Over oceanic areas at latitues around 30°N/S.",
        "D": "In mid latitudes along the polar front"
      },
      "correct": "C"
    },
    {
      "num": 115,
      "text": "Weather and operational information about the destination aerodrome can be obtained during the flight by...",
      "options": {
        "A": "PIREP",
        "B": "SIGMET",
        "C": "ATIS.",
        "D": "VOLMET."
      },
      "correct": "C"
    },
    {
      "num": 116,
      "text": "What cloud type does the picture show? See figure (MET-002). Siehe Anlage 2",
      "options": {
        "A": "Stratus",
        "B": "Cirrus",
        "C": "Altus",
        "D": "Cumulus"
      },
      "correct": "D"
    },
    {
      "num": 117,
      "text": "The character of an air mass is given by what properties?",
      "options": {
        "A": "Wind speed and tropopause height",
        "B": "Environmental lapse rate at origin",
        "C": "Region of origin and track during movement",
        "D": "Temperatures at origin and present region"
      },
      "correct": "C"
    },
    {
      "num": 118,
      "text": "What cloud type can typically be observed across widespread high pressure areas during summer?",
      "options": {
        "A": "Overcast low stratus",
        "B": "Scattered Cu clouds",
        "C": "Overcast Ns clouds",
        "D": "Squall lines and thunderstorms"
      },
      "correct": "B"
    },
    {
      "num": 119,
      "text": "The symbol labeled (1) as shown in the picture is a / an... See figure (MET-005) Siehe Anlage 4",
      "options": {
        "A": "Front aloft.",
        "B": "Cold front.",
        "C": "Occlusion.",
        "D": "Warm front."
      },
      "correct": "B"
    },
    {
      "num": 120,
      "text": "In a METAR, \"heavy rain\" is designated by the identifier...",
      "options": {
        "A": "RA.",
        "B": ".+RA",
        "C": "SHRA",
        "D": ".+SHRA."
      },
      "correct": "B"
    },
    {
      "num": 123,
      "text": "With regard to thunderstorms, strong up- and downdrafts appear during the...",
      "options": {
        "A": "Mature stage.",
        "B": "Dissipating stage.",
        "C": "Initial stage.",
        "D": "Thunderstorm stage."
      },
      "correct": "A"
    },
    {
      "num": 124,
      "text": "Which of the following conditions are most favourable for ice accretion?",
      "options": {
        "A": "Temperatures between 0° C and -12° C, presence of supercooled water droplets (clouds)",
        "B": "Temperaturs below 0° C, strong wind, sky clear of clouds",
        "C": "Temperatures between -20° C and -40° C, presence of ice crystals (Ci clouds)",
        "D": "Temperatures between +10° C and -30° C, presence of hail (clouds)"
      },
      "correct": "A"
    },
    {
      "num": 125,
      "text": "What danger is most imminent during an approach to an airfield situated in a valley, with strong wind aloft blowing perpendicular to the mountain ridge?",
      "options": {
        "A": "Reduced visibilty, maybe loss of sight to the airfield during final approach",
        "B": "Wind shear during descent, wind direction may change by 180°",
        "C": "Formation of medium to heavy clear ice on all aircraft surfaces",
        "D": "Heavy downdrafts within rainfall areas below thunderstorm clouds"
      },
      "correct": "B"
    },
    {
      "num": 126,
      "text": "What phenomenon is referred to as blue thermals?",
      "options": {
        "A": "Thermals with less than 4/8 Cu coverage",
        "B": "Descending air between Cumulus clouds",
        "C": "Turbulence in the vicinity of Cumulonimbus clouds",
        "D": "Thermals without formation of Cu clouds"
      },
      "correct": "D"
    },
    {
      "num": 127,
      "text": "The term beginning of thermals refers to the moment when thermal intensity...",
      "options": {
        "A": "Becomes usable for cross-country gliding by formation of Cu clouds.",
        "B": "Becomes usable for gliding and reaches up to 1200 m MSL.",
        "C": "Reaches up to 600 m AGL and forms Cumulus clouds.",
        "D": "Becomes usable for gliding and reaches up to 600 m AGL."
      },
      "correct": "D"
    },
    {
      "num": 128,
      "text": "The term trigger temperature is defined as the temperature which...",
      "options": {
        "A": "Is reached by a thermal lift during ascend when formation of Cumulus clouds begins.",
        "B": "Is the maximum temperature at ground level that can be reached without formation of a thunderstorm from a Cumulus cloud.",
        "C": "Is the minimum temperature at ground level that has to be reached so formation of a thunderstorm from a Cumulus cloud can occur.",
        "D": "Must be obtained at ground level so Cumulus clouds can be formed by thermal lifts."
      },
      "correct": "D"
    },
    {
      "num": 129,
      "text": "What situation is called over-development in a weather report?",
      "options": {
        "A": "Change from blue thermals to cloudy thermals during the afternoon",
        "B": "Development of a thermal low to a storm depression",
        "C": "Vertical development of Cumulus clouds to rain showers",
        "D": "Widespreading of Cumulus clouds below an inversion layer"
      },
      "correct": "C"
    },
    {
      "num": 130,
      "text": "What situation is referred to as shielding?",
      "options": {
        "A": "Ns clouds, covering the windward side of a mountain range",
        "B": "High or mid-level cloud layers, impairing thermal activity",
        "C": "Anvil-like structure at the upper levels of a thunderstorm cloud",
        "D": "Coverage of Cumulus clouds, stated as part of eights of the sky"
      },
      "correct": "B"
    },
    {
      "num": 131,
      "text": "What is the gas composition of air?",
      "options": {
        "A": "Oxygen 78 % Water vapour 21 % Nitrogen 1 %",
        "B": "Oxygen 21 % Nitrogen 78 % Noble gases / carbon dioxide 1 %",
        "C": "Oxygen 21 % Water vapour 78 % Noble gases / carbon dioxide 1 %",
        "D": "Nitrogen 21 % Oxygen 78 % Noble gases / carbon dioxide 1 %"
      },
      "correct": "B"
    },
    {
      "num": 132,
      "text": "What is the mass of a cube of air with the edges 1 m long, at MSL according ISA?",
      "options": {
        "A": "0,01225 kg",
        "B": "0,1225 kg",
        "C": "12,25 kg",
        "D": "1,225 kg"
      },
      "correct": "D"
    },
    {
      "num": 133,
      "text": "The term tropopause is defined as...",
      "options": {
        "A": "The layer above the troposphere showing an increasing temperature.",
        "B": "The height above which the temperature starts to decrease.",
        "C": "The boundary area between the troposphere and the stratosphere.",
        "D": "The boundary area between the mesosphere and the stratosphere."
      },
      "correct": "C"
    },
    {
      "num": 134,
      "text": "What is meant by inversion layer?",
      "options": {
        "A": "An atmospheric layer where temperature increases with increasing height",
        "B": "An atmospheric layer where temperature decreases with increasing height",
        "C": "An atmospheric layer with constant temperature with increasing height",
        "D": "A boundary area between two other layers within the atmosphere"
      },
      "correct": "A"
    },
    {
      "num": 135,
      "text": "What is meant by isothermal layer?",
      "options": {
        "A": "An atmospheric layer where temperature decreases with increasing height",
        "B": "An atmospheric layer with constant temperature with increasing height",
        "C": "A boundary area between two other layers within the atmosphere",
        "D": "An atmospheric layer where temperature increases with increasing height"
      },
      "correct": "B"
    },
    {
      "num": 136,
      "text": "Which force causes wind?",
      "options": {
        "A": "Centrifugal force",
        "B": "Pressure gradient force",
        "C": "Coriolis force",
        "D": "Thermal force"
      },
      "correct": "B"
    },
    {
      "num": 137,
      "text": "Foehn conditions usually develop with...",
      "options": {
        "A": "Instability, high pressure area with calm wind.",
        "B": "Stability, high pressure area with calm wind.",
        "C": "Stability, widespread air blown against a mountain ridge.",
        "D": "Instability, widespread air blown against a mountain ridge."
      },
      "correct": "C"
    },
    {
      "num": 138,
      "text": "The spread is defined as...",
      "options": {
        "A": "Difference between actual temperature and dew point.",
        "B": "Difference between dew point and condensation point.",
        "C": "Relation of actual to maximum possible humidity of air",
        "D": "Maximum amount of water vapour that can be contained in air."
      },
      "correct": "A"
    },
    {
      "num": 139,
      "text": "What weather phenomenon designated by 2 has to be expected on the lee side during Foehn conditions? See figure (MET-001). Siehe Anlage 1",
      "options": {
        "A": "Cumulonimbus",
        "B": "Cumulonimbus",
        "C": "Altocumulus lenticularis",
        "D": "Altocumulus Castellanus"
      },
      "correct": "C"
    },
    {
      "num": 140,
      "text": "What condition may prevent the formation of radiation fog?",
      "options": {
        "A": "Calm wind",
        "B": "Clear night, no clouds",
        "C": "Low spread",
        "D": "Overcast cloud cover"
      },
      "correct": "D"
    },
    {
      "num": 141,
      "text": "What process results in the formation of advection fog?",
      "options": {
        "A": "Cold, moist air is being moved across warm ground areas",
        "B": "Cold, moist air mixes with warm, moist air",
        "C": "Prolonged radiation during nights clear of clouds",
        "D": "Warm, moist air is moved across cold ground areas"
      },
      "correct": "D"
    },
    {
      "num": 142,
      "text": "What process results in the formation of orographic fog (hill fog)?",
      "options": {
        "A": "Prolonged radiation during nights clear of clouds",
        "B": "Warm, moist air is moved across a hill or a mountain range",
        "C": "Evaporation from warm, moist ground area into very cold air",
        "D": "Cold, moist air mixes with warm, moist air"
      },
      "correct": "B"
    },
    {
      "num": 143,
      "text": "What weather phenomena have to be expected around an upper-level trough?",
      "options": {
        "A": "Calm weather, formation of lifted fog layers",
        "B": "Calm wind, forming of shallow cumulus clouds",
        "C": "Development of showers and thunderstorms (Cb)",
        "D": "Formation of high stratus clouds, ground-covering cloud bases"
      },
      "correct": "C"
    },
    {
      "num": 144,
      "text": "What weather conditions can be expected during Foehn on the windward side of a mountain range?",
      "options": {
        "A": "Layered clouds, mountains obscured, poor visibility, moderate or heavy rain",
        "B": "Dissipating clouds with unusual warming, accompanied by strong, gusty winds",
        "C": "Calm wind and forming of high stratus clouds (high fog)",
        "D": "Scattered cumulus clouds with showers and thunderstorms"
      },
      "correct": "A"
    },
    {
      "num": 145,
      "text": "Measured pressure distribution in MSL and corresponding frontal systems are displayed by the...",
      "options": {
        "A": "Hypsometric chart",
        "B": "Prognostic chart.",
        "C": "Surface weather chart.",
        "D": "Significant Weather Chart (SWC)."
      },
      "correct": "C"
    },
    {
      "num": 146,
      "text": "In a METAR, heavy rain is designated by the identifier...",
      "options": {
        "A": "RA.",
        "B": ".+RA",
        "C": "SHRA",
        "D": ".+SHRA."
      },
      "correct": "B"
    },
    {
      "num": 147,
      "text": "In a METAR, (moderate) showers of rain are designated by the identifier...",
      "options": {
        "A": ".+TSRA",
        "B": "SHRA.",
        "C": "TS.",
        "D": ".+RA."
      },
      "correct": "B"
    },
    {
      "num": 148,
      "text": "Under which conditions back side weather (Rückseitenwetter) can be expected?",
      "options": {
        "A": "After passing of a cold front",
        "B": "Before passing of an occlusion",
        "C": "During Foehn at the lee side",
        "D": "After passing of a warm front"
      },
      "correct": "A"
    },
    {
      "num": 149,
      "text": "How does air temperatur change in ISA from MSL to approx. 10.000 m height?",
      "options": {
        "A": "From +30° to -40°C",
        "B": "From +20° to -40°C",
        "C": "From -15° to 50°C",
        "D": "From +15° to -50°C"
      },
      "correct": "D"
    },
    {
      "num": 150,
      "text": "What weather is likely to be experienced during Foehn in the Bavarian area close to the alps?",
      "options": {
        "A": "Cold, humid downhill wind on the lee side of the alps, flat pressure pattern",
        "B": "Nimbostratus cloud in the southern alps, rotor clouds at the lee side, warm and dry wind",
        "C": "High pressure area overhead Biskaya and low pressure area in Eastern Europe",
        "D": "Nimbostratus cloud in the northern alps, rotor clouds at the windward side, warm and dry wind"
      },
      "correct": "B"
    }
  ]
}