1-Between mean sea level and a height of 20 km, the lowest temperature in the ICAO Standard Atmosphere (ISA) is:
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2-THE ICAO STANDARD ATMOSPHERE (ISA) assumes that, at mean sea-level,
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3-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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4-In the ICAO Standard Atmosphere the decrease in temperature with height below 11 km is
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5-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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6-The lowest assumed temperature in the International Standard Atmosphere (ISA) is :
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7-In relation to the total weight of the atmosphere, the weight of the atmosphere between mean sea level and a height of 5500 m is
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8-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of
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9-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of
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10-What is the lowest temperature in standard atmosphere?
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11-The temperature at 10000ft in the ICAO Standard Atmosphere
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12-In the ICAO Standard Atmosphere (ISA), the fall in pressura with height, close to sealevel, is approximately 1 millibar for every
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13-What is the density at sea level in the International Standard Atmosphere?
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14-The temperature lapse rate of the ICAO standard atmosphere in the troposphere is:
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15-The temperature at 10000 FT in the ICAO Standard Atmosphere is:
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16-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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17-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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18-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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19-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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20-What is the atmosphering pressure at sea level in the International Standard Atmosphere?
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21-What is, approximately, the temperature at 20000 FT in the ICAO Standard Atmosphere?
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22-Which of the following combinations of pressure and temperature is correct in the ICAO standard atmosphere?
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23-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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24-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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25-The temperature at 2000ft AMSL is forecast to be +5°C: compared to the International Standard Atmosphere (ISA) this is:
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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-How does temperature vary with increasing altitude in the ICAO standard atmosphere below the tropopause?
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28-The QNH at an airfield located at mean sea level is 1022 hPa. The air temperature is not available. What is the QFF?
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29-Which statement is correct regarding the ICAO Standard Atmosphere ?
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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-In standard atmosphere, 500 hPa level corresponds to:
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32-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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33-The upper wind and temperature chart of 250 hPa corresponds, in a standard atmosphere, to about
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34-Considering the route between Valencia and Charleston at FL 340, the forecast mean temperature is
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35-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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36-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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37-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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38-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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39-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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40-You are planning to fly across a mountain range. The chart recommends a minimum altitude of 12000 feet above mean sea level. The air mass you will be flying through is an average 10°C warmer than ISA. Your altimeter is set to 1023 hPa (QNH of a nearby airport at nearly sea level). What altitude will the altimeter show when you have reached the recommended minimum altitude?
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41-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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42-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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43-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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44-Flight from Lisbon (LPPT) to Kingston (MKJP) At 40°N 20°W, the temperature deviation from ISA at FL 390 is
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45-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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46-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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47-The pressure change with height of the atmosphere:
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48-The QNH at an airfield located 200 metres above sea level is 1022 hPa. The air temperature is not available. What is the QFF?
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49-What is the relationship, if any, between QFE and QNH at an airport situated 50 FT below sea level?
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50-The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately
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51-The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately
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52-What is the average temperature difference from ISA at FL 300 between Edinburgh and Madrid?
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53-What is the average temperature difference from ISA at FL 390 between Madrid and Dhahran?
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54-The mean height of the tropical tropopause is
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55-A plain in Western Europe with an average height of 500 m (1600 FT) above sea level is covered with a uniform CC layer of cloud during the summer months. At what height above the ground is the base of this cloud to be expected?
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56-A plain in Western Europe with an average height of 500 m (1600 FT) above sea level is covered with a uniform SC layer of cloud during the summer months. At what height above the ground is the base of this cloud to be expected?
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57-An aircraft flies from aerodrome "A", (QNH= 1020 hPA) , to aerodrome "B", (QNH= 999 hPA) . Aerodrome "A" is 800 ft. above mean sea level and aerodrome "B" is 540 ft. above mean sea level. If the altimeter sub scale is not changed from 1020, what is the altimeter indication on landing.
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58-If an airfield is 240ft above mean sea level (AMSL) and the airfield QNH is 1024hPa calculate the airfield QFE given that 1 hPa =30ft.
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59-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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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-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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62-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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63-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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64-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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65-At which pressure and temperature conditions may you safely assume that the minimum usable flight level at least lies at the same height, as the minimum safe altitude?
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66-At which pressure and temperature conditions may you safely assume that the minimum usable flight level at least lies at the same height, as the minimum safe altitude?
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67-Flight from Lisbon (LPPT) to Kingston (MKJP) Considering the route segment between 60°W and 70°W, at FL 390 the forecast mean temperature is
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68-A plain in Western Europe with an average elevation of 500 m (1600 FT) above sea level is covered with a uniform AC layer of cloud during the summer months. At what height above the ground is the base of this cloud to be expected?
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69-The most significant raising of the temperature of the atmosphere is
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70-A layer in which the temperature increases with height is
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71-The height and the temperature of the tropopause are respectively in the order of
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72-The height of the lifting condensation level is determined by
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73-After landing at an aerodrome (QNH 993 hPa) it is noticed that the altimeter is still set to 1013,2 hPa and that it reads 1200 feet. What is the elevation of the aerodrome above mean sea level ?
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74-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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75-The International Standard Atmosphere assumes a lapse rate of:
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76-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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77-The mean height of the tropical zero degree isotherm is
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78-A temperature inversion indicates a state of the atmosphere which is
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79-A layer in which the temperature remains constant with height is
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80-A layer is absolutely unstable if the temperature decrease with height is
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81-The actual change of the temperature in the air mass with height is known as:
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82-According to ISA the temperature in the lower part of the stratosphere
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83-What is the approximate height of the tropopause between Munich and Helsinki?
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84-You must make an emergency landing at sea. The QNH of a field on a nearby island with an elevation of 4000 FT is 1025 hPa and the temperature is -20°C. What is your pressure altimeter reading when landing if 1025 hPa is set in the subscale?
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85-You plan a flight over a mountain range at a true altitude of 15000 FT/AMSL. The air is on an average 15°C colder than ISA, the pressure at sea level is 1003 hPa. What approximate indication should the altimeter (setting 1013.2 hPa) read?
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86-One of the reasons for International Standard Atmospheric (ISA) conditions are created is;
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87-Relative humidity at a given temperature is the relation between
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88-What is the relationship between relative humidity and temperature?
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89-The difference between temperature and dew point is greater in
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90-The temperature remains constant through a given depth of atmosphere, it is described as
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91-What is the deviation of the temperature at FL 140 above Copenhagen compared to ISA?
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92-What is the approximate ratio between height and width for a jet stream cross section?
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93-What weather conditions are prevalent during the summer, over the North Sea, approximately 300 km behind a quickly moving cold front?
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94-An aircraft with 1020hPa set on the altimeter sub-scale departs aerodrome 'A' which is 800ft above mean sea level (AMSL). The flight is made to the planned destination aerodrome 'B' which is in an area of low pressure, but the altimeter sub-scale is not updated en route. If the QNH at aerodrome 'B' is 999hPa, and the highest point on the landing area is 500ft AMSL, what should the altimeter read? Assume 1hPa = 30ft.
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95-What is the average temperature at FL 160 between Oslo and Paris ?
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96-At FL 180, the air temperature is -35°C.The air density at this level is:
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97-At FL 180, the air temperature is -35°C.The air density at this level is:
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98-At FL 180, the air temperature is -35°C. The air density at this level is:
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99-Considering the North Atlantic route from the Azores to Bermuda, the mean height of the tropical tropopause during summer is approximately
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100-Considering the route indicated from Recife to Dakar the mean height of the tropopause during January is approximately