1-The temperature at FL 160 is -22°C. What will the temperature be at FL 90 if the ICAO standard lapse rate is applied ?
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2-The temperature at FL 140 is -12°C. What will the temperature be at FL 110 if the ICAO standard lapse rate is applied ?
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3-The temperature at FL 80 is +6°C. What will the temperature be at FL 130 if the ICAO standard lapse rate is applied ?
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4-The temperature at FL 110 is -5°C. What will the temperature be at FL 50 if the ICAO standard lapse rate is applied ?
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5-The temperature lapse rate of the ICAO standard atmosphere in the troposphere is:
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6-The temperature at 3000 ft. above mean sea level is forecast to be 3°C. What is the deviation from ICAO Standard Atmosphere?
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7-If you are flying at FL 100 in an air mass that is 10°C warmer than a standard atmosphere, what is the outside temperature likely to be?
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8-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?
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9-You are flying at FL 160. Outside air temperature is -27°C, and the pressure at sea level is 1003 hPa. What is the true altitude?
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10-You are flying at FL 160. Outside air temperature is -27°C, and the pressure at sea level is 1003 hPa. What is the true altitude?
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11-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of
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12-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of
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13-What is the average temperature at FL 160 between Oslo and Paris ?
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14-On a route segment from A to B the highest terrain elevation is approximately 200 feet. For an instrument flight the minimum obstacle clearance is 1000 feet. The subscale of the altimeter is set to the local QNH of 1013 hPa and the temperature on the ground is -5°C. Assume a standard temperature lapse rate. What is the approximate minimum acceptable altimeter indication during the flight on this route segment?
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15-What is, approximately, the temperature at 20000 FT in the ICAO Standard Atmosphere?
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16-The 0°C isotherm is forecast to be at FL 50. At what FL would you expect a temperature of -6°C?
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17-What is the dry adiabatic lapse rate ?
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18-What is the dry adiabatic lapse rate ?
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19-The International Standard Atmosphere assumes a lapse rate of:
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20-The temperature at 10000ft in the ICAO Standard Atmosphere
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21-The 0° isotherm is forecast to be at FL 50. At what FL would you expect a temperature of -6° C?
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22-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?
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23-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
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24-At a certain position, the temperature on the 300 hPa chart is -48°C; according to the tropopause chart, the tropopause is at FL 330. What is the most likely temperature at FL 350 ?
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25-At an altitude of 1650 feet AMSL, a temperature of +15°C is measured. What will the temperature be at an altitude of 8200 feet, if you consider the temperature gradient of the Standard Atmosphere?
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26-What is the temperature deviation in degrees Celsius, from the ICAO Standard Atmosphere overhead Frankfurt ?
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27-If you are flying at FL 120 and the outside temperature is -2°C, at what altitude will the "freezing level" be?
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28-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) ?
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29-The temperature at 10000 FT in the ICAO Standard Atmosphere is:
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30-The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is -15°C below FL 100. What is the true altitude of FL 100?
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31-What is the lowest temperature in standard atmosphere?
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32-What weather condition occurs at the altitude where the dewpoint lapse rate and the dry adiabatic lapse rate converge?
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33-A temperature of +15°C is recorded at an altitude of 500 metres above sea level. If the vertical temperature gradient is that of a standard atmosphere, what will the temperature be at the summit of a mountain, 2500 metres above sea level?
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34-The QNH at an airfield located 200 metres above sea level is 1009 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QFF?
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35-The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QNH?
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36-The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C higher than a standard atmosphere. What is the QNH?
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37-You are flying at FL 200. Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa. What is the true altitude?
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38-What intensity and type of airframe icing is most likely to occur when flying at FL 170 in AS with the outside air temperature at -20°C?
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39-You are flying at FL 200. Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa. What is the true altitude?
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40-If atmospheric conditions exist such that the temperature deviation is ISA +10°C in the lower troposphere up to 18000 FT, what is the actual layer thickness between FL 60 and FL 120 ?
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41-Which of the following combinations of pressure and temperature is correct in the ICAO standard atmosphere?
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42-In the ICAO Standard Atmosphere the decrease in temperature with height below 11 km is
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43-A vertical spacing of 1000 FT is the standard required separation between two FL. Under conditions of cold air advection (ISA -15°C), what would the true vertical separation be?
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44-At FL 180, the air temperature is -35°C. The air density at this level is:
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45-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?
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46-The QFF at an airfield in California located 69 metres below sea level is 1030 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QNH?
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47-You are flying with an outside air temperature of -12°C and a TAS of 250 kt at FL 150 through 8 oktas NS. What type and degree of icing is most probable?
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48-The dry adiabatic lapse rate
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49-You are flying over the sea at FL 250 and measure an outside temperature of -50°C. The pressure at sea level is 1023 hPa. What is your approximate true altitude calculated using normal vertical change in temperature with increase in height?
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50-What is the deviation of the temperature at FL 140 above Copenhagen compared to ISA?
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51-Between mean sea level and a height of 20 km, the lowest temperature in the ICAO Standard Atmosphere (ISA) is:
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52-In the ICAO standard atmosphere, which of the following alternatives indicates the correct vertical temperature distribution in the lowest 11 km?
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53-How does temperature vary with increasing altitude in the ICAO standard atmosphere below the tropopause?
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54-The value of the saturated adiabatic lapse rate is closest to that of the dry adiabatic lapse rate in
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55-Over Amsterdam, what amount and general type of cloud would you expect at FL 160 ?
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56-The environmental lapse rate in an actual atmosphere
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57-Temperature decreases with altitude in standard atmosphere. Regarding this change in temperature, density should increase with altitude but it decreases. What is the reason?
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58-The temperature at 2000ft AMSL is forecast to be +5°C: compared to the International Standard Atmosphere (ISA) this is:
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59-The temperature deviation from ISA (to the nearest °C) overhead Charleston (33°N 080°W) at FL 340 is
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60-You are flying at FL 300 where the outside air temperature is -57.5°C and the pressure at MSL is 1013.25 hPa. If you assume that the difference between the actual temperature and the temperature in the ISA is valid for the whole troposphere, then the true altitude is:
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61-The dry adiabatic lapse rate has a value of
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62-The dry adiabatic lapse rate has a value of
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63-If an Environment Lapse Rate (ELR) has steep value...
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64-What is the average temperature difference from ISA at FL 300 between Edinburgh and Madrid?
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65-What is the average temperature difference from ISA at FL 390 between Madrid and Dhahran?
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66-During the late afternoon an air temperature of +12°C and a dew point of +5°C were measured. What temperature change must at least occur during the night in order to induce saturation?
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67-What intensity and type of airframe icing is most likely to occur when aircraft descend rapidly from FL 320 (temp. -45°C) to FL 60 in warm, moist clear air?
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68-In the lower levels of the atmosphere when the environmental lapse rate is greater than saturated adiabatic lapse rate but less than dry adiabatic lapse rate - the air mass is described as being
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69-The temperature at FL 330 overhead London will be
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70-An aircraft is flying from south to north, above the polar front jet stream, at FL 400 in the southern hemisphere. What change, if any, in temperature will be experienced ?
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71-An aircraft is flying over the sea at FL 90; the true altitude is 9100 feet; local QNH is unknown. What assumption, if any, can be made about the air mass in which the aircraft is flying ?
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72-It is raining and the outside air temperature is -5°C. What would you decide if you have a propeller to operate in non-icing conditions only?
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73-Which statement is correct regarding the ICAO Standard Atmosphere ?
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74-Absolute instability in the atmosphere will occur when the environmental lapse rate is
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75-Absolute instability is said to exist whenever the environmental lapse rate
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76-Absolute instability is said to exist whenever the environmental lapse rate
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77-Which constant pressure chart is standard for FL 450?
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78-Which constant pressure chart is standard for FL 340?
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79-Which constant pressure chart is standard for FL 240?
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80-Which constant pressure chart is standard for FL 140?
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81-Select from the map the average wind for the route Athens - Geneva at FL 160.
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82-The lowest assumed temperature in the International Standard Atmosphere (ISA) is :
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83-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?
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84-An aircraft flying at FL 45 (OAT 6°C) obtains a reading of 1860 ft on its radio altimeter (ground elevation 3090 ft). What is the value of the QNH, to the nearest hPa, at that point?
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85-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?
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86-Given: Altimeter setting: 1013.2 hPa Altimeter reading: 5000 ft Outside air temperature at 5000 ft: +5°C QFE: 958 hPa QNH: 983 hPa What is the true height of the aeroplane above the aerodrome?
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87-Consider a parcel of air being forced upwards in the atmosphere. The lapse rate of the surrounding air is less than the saturated adiabatic lapse rate. After the initial force is no longer effective, the parcel of air
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88-THE ICAO STANDARD ATMOSPHERE (ISA) assumes that, at mean sea-level,
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89-What characteristic is associated with a temperature inversion ?
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90-What feature is associated with a temperature inversion?
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91-In an air mass with no clouds the surface temperature is 15°C and the temperature at 1000 m/AGL is 13°C. This layer of air is:
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92-Which constant pressure altitude chart is standard for FL 300?
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93-Which constant pressure altitude chart is standard for FL 180?
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94-Which constant pressure altitude chart is standard for FL 100?
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95-Which constant pressure altitude chart is standard for FL 390?
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96-What is the density at sea level in the International Standard Atmosphere?
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97-The upper wind and temperature chart of 250 hPa corresponds, in a standard atmosphere, to about
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98-What is the approximate speed of a 90 km/h wind, expressed in knots?
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99-What wind is forecast at FL 390 over Paris ?
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100-Considering the route between Valencia and Charleston at FL 340, the forecast mean temperature is