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#1. The lowest temperature in the international standard atmosphere (ISA) is?

#2. MSA given as 12,000ft, flying over mountains in temperatures +9°C, QNH set as 1023 (obtained from a nearby airfield). What will the true altitude be when 12,000ft is reached?

#3. Which frontal or occlusion system is the fastest moving?

#4. Why do TRS not occur in the SE Pacific and South Atlantic?

#5. From the pre-flight briefing you know a jet stream is at 31000 ft whilst you are at FL270. You experience moderate C.A.T, what would be the best course of action?

#6. In the Northern Hemisphere a man observes a low pressure system passing him to the south, from west to east. What wind will he experience?

#7. On a significant weather chart you notice a symbol with the letter “H” and the number “400” inside. What does this imply?

#8. When would a rotor cloud be ahead of a Cb?

#9. What are the conditions under which advection fog will be formed?

#10. You are at 12,000 ft (FL120) with an outside air temperature is -2°C. Where would you find the freezing level?

#11. How does a polar front depression normally move?

#12. What cloud does hail fall from?

#13. Flying away from a low pressure at low levels in the Southern Hemisphere, where is the wind coming from?

#14. What is a cold pool, in the northern hemisphere?

#15. The ITCZ in July is?

#16. What is Relative Humidity dependent upon?

#17. Using the diagram shown, what cross section is through an occluded front?

#18. If the ELR is 0.65°C/100m

#19. What is true about the dew point temperature?

#20. Where are you most likely to find moderate to severe icing?

#21. What kind of weather system might you typically find between the 45° - 70°N?

#22. Height of the tropopause at 50° N

#23. What is true regarding super cooled water droplets?

#24. What are the indications of a TRS from a great distance?

#25. What is most different about the Equatorial Easterly jet stream?

#26. Flying from London to Bombay in January, what average wind might you expect?

#27. Flying towards a warm front, at what distances might you expect the following cloud types from the surface position of the front?

#28. What pressure systems affect the North Atlantic in summer?

#29. Wind is caused by?

#30. A characteristic of a stable air mass

#31. What weather might you expect behind a fast moving cold front?

#32. How do you recognise high level jet streams and associated CAT?

#33. How would an unstable atmosphere likely reduce the visibility?

#34. Which conditions lead to mountain waves?

#35. Which is true regarding a polar front jet stream?

#36. . Where is the coldest air in a cold occlusion?

#37. Which of the following indicates upper level instability and possible the formation of TS?

#38. What causes low level cloud in front of the warm front?

#39. When are the north Atlantic lows at their most southerly position?

#40. Where is the largest chance of squalls occurring?

#41. ELR is 1ºC/100m

#42. A layer of air cooling at the SALR compared to the DALR would give what kind of cloud

#43. For the same pressure gradient at 50N, 60N and 40N, the geostrophic wind speed is?

#44. Typical tornado diameter

#45. What is a SPECI?

#46. In the area of the ITCZ why are the heights of the tropopause not reported?

#47. A parcel of air cooling by more than 1°C/100m is said to be?

#48. Flying condition in Ci cloud and horizontal visibility

#49. The wind in the Northern Hemisphere at the surface and above the friction layer at 2000 ft would be?

#50. . Description of radiation fog

#51. Where are easterly and westerly jets found ?

#52. . Flying over an airfield, at the surface the temp is -5ºC, freezing level is at 3000ft, rain is falling from clouds with a base of 4000ft caused by warm air rising above cold air. When would you experience icing?

#53. Which weather phenomena are typical for the north side of the alps with stormy winds from the south (Foĕhn?)

#54. Climbing out of Dhahran, Saudi Arabia on a clear night you suddenly lose your rate of climb. Why?

#55. At 15,000ft in nimbostratus cloud with an outside air temperature of -12°C, what icing might you expect?

#56. What is the composition of Ci cloud?

#57. Comparing rain to drizzle, visibility will generally…?

#58. What cloud types are classified as medium cloud?

#59. What statement is true regarding the tropopause?

#60. What is the approximate height of the tropopause at 50ºN?

#61. Please refer to Appendix F (attached on the next page) What is the temperature deviation, in degrees Celsius, from the International Standard Atmosphere overhead Frankfurt (50N 08E) at FL 180 ?

#62. . Isolated TS occur mostly due to

#63. Polar front depression normally move

#64. What type of cloud is associated with drizzle?

#65. QNH in a METAR is

#66. Fair weather cumulus gives an indication of

#67. Thermal lows usually develop

#68. What cloud type are you least likely to get icing from?

#69. TAF’s are usually valid for

#70. When flying from South to North in the Southern Hemisphere crossing over and above a polar frontal jet at FL 400, what might happen to the OAT?

#71. Tornadoes are usually associated with which cloud type

#72. What type of jet stream blows constantly through the northern hemisphere?

#73. Why is clear ice such a problem?

#74. Wind at altitude is usually given as …….. in ……..

#75. The surface wind circulation found between the sub tropical highs and the equatorial lows are called?

#76. An occlusion is mimicking a cold front, where would the coldest air be found?

#77. A steep pressure gradient is characterised by

#78. In a high pressure systems

#79. Assuming a generalised zonal distribution of winds, which zones on the diagram contain the temperate lows?0

#80. Over flat dry land what would cause cloud?

#81. If you fly with left drift in the Northern Hemisphere, what is happening to your true altitude?

#82. Where does freezing rain come from?

#83. What type of icing requires immediate diversion?

#84. Without the ability to de-ice or land immediately, what should you do if you encounter rain ice at about 2,000ft?

#85. What is the weather inside the warm sector in a frontal depression in central Europe?

#86. What is the feature W?

#87. Flying from Dakar to Rio de Janeiro, where is the ITCZ in winter?

#88. Using the picture shown above, what will be expected to happen to the surface pressure after the feature Y has passed?

#89. At a stationary front

#90. A man is flying East to West in the Northern Hemisphere. What is happening to his altitude?

#91. In central Europe, where are the greatest wind speeds?

#92. Up to FL180 ISA Deviation is ISA -10°C. What is the actual depth of the layer between FL60 and FL120?

#93. Sublimation is

#94. In central Europe in summer, under the influence of a polar depression in a wide warm sector, you would expect the following wx:

#95. Standing in the Northern Hemisphere, north of a polar frontal depression travelling west to east, the wind will

#96. An Easterly wave will produce:

#97. What is the coldest time of the day?

#98. The line connecting A to B crosses what pressure system:

#99. Which of the following would lead to the formation of Advection fog

#100. Which coast of the USA is affected by the most frequent hurricanes:

#101. Using the radiosonde diagrams, which would most likely show ground fog?

#102. Flying over France at dawn, with 8/8 St at 200ft, QNH 1026, wind Var3, what will be the most likely conditions at mid-day in winter and summe

#103. Which of the following would lead to the formation of Steaming fog

#104. When is diurnal variation a maximum?

#105. What do the following one hour interval METARS indicate the passage of: 22010KT 9999 SCT200 14/08 Q1012= 22010KT 9999 OVC200 13/08 Q1011= 23012KT 9KM SCT 060 OVC120 13/08 Q1010= 24012KT 8KM -RA BKN040 OVC090 12/08 Q1009= 25015KT 2000 +RA SCT002 OVC008 12/08 Q1008= 27015KT 0800 DZ BKN002 OVC010 17/16 Q1008= 27015KT 0800 DZ BKN002 OVC010 17/16 Q1008= 27015G30KT 1000 +SHRA TS OVC010 17/16 Q1008= 29020KT 9000 SHRA BKN020 14/07 Q1010= 31020KT 9999 SCTO30 13/07 Q1012=

#106. Paris reports OVC 8/8 St at +3 ° C during the day. What will happen on the night of 3/4 Jan

#107. QNH at Timbuktu (200m AMSL) is 1015 hPa. What is the QFE? (Assume 1 hPa = 8m)

#108. With a cold front over the North Sea, what weather would you expect 300km behind the front?

#109. The Arctic Jet core is at:

#110. Surface wind is 320/12 what is the wind at 2000ftin the Northern hemisphere?

#111. If flying cross country at FL50 you first see NS, AS, CC then CI, you can expect:

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