3-42. In which of the following meteorological  situations  should you  forecast  the  greatest probability  of  aircraft  icing? 1. Cold  air  advection,  temperature of -5°C,    and  dewpoint depression  of  2°C 2. Cold  air  advection,  temperature of -7°C,    and  dewpoint depression  of  3°C 3. Warm  air  advection,  temperature of  -15°C,    and  dewpoint depression  of  4°C 4. Warm  air  advection,  temperature of -10°C,    and  dewpoint depression  of  3°C IN ANSWERING QUESTION 3-43, REFER TO FIGURE 5-20 IN YOUR TRAMAN. 3-43. Assume that you have weak cold air advection  between  approximately 9,000 and 12,000 ft. On the basis of the temperatures and the dewpoint  depressions,  what  should your  icing  intensity  forecast  be for this area? 1. Light 2. Moderate 3. Severe 4. Extreme IN ANSWERING QUESTION 3-44, REFER TO FIGURE 5-21 IN YOUR TRAMAN. 3-44. What  determines  the  intensity  of expected  icing? 1. The size of the hatched area 2. The value of the combined dewpoints 3. The size of the area between the  temperatures  and  the dewpoints 4. The stability of the air mass 3-45. Which  of  the  following  icing conditions  should  be  expected  if the -8D curve is to the left of the temperature curve in an area with temperatures  ranging  from  -10  to -18°C? 1. Light  glaze  icing 2. Light rime icing 3. Light  hoarfrost 4. No icing 3-46. Wind  shear  produces  turbulence because of eddies created due to tight  vertical  or  horizontal gradients in wind velocity in a specific  direction  along  the  same line. 1. True 2. False 3-47. A pilot files a DD Form 175-1 for an IFR flight in a P-3 aircraft along a route that will cross over a  mountainous  area  where  mountain waves  exist. If the height of the tallest en route peak is 5,280 ft, and the pilot can NOT avoid the area,    what is the minimum altitude the pilot must maintain in flying over the area? 1. 3,440 ft 2. 7,920  ft 3. 11,160 ft 4. 11,280 ft 3-48. Turbulent  eddies  on  mountain  ridges usually exist in much deeper layers on what part of the slope? 1. At the highest peak 2. At the lowest base 3. On the windward side 4. On the leeward side 3-49. Clear air turbulence (CAT) is most frequently  encountered  in  the winter months. 1. True 2. False 3-50. CAT occurs primarily at which of the  following  locations? 1. Poleward of the jet stream core 2. Equatorward  of  the  jet  stream core 3. Within the jet stream core 4. At the 40,000-ft level in warm troughs 3-51. Which  of  the  following  statements is NOT a valid characteristic of sea waves? 1. Sea waves are created by local winds 2. Sea waves are composed of a small spectrum of sine waves 3. Sea waves remain in their generating  area 4. Sea waves are very irregular in appearance 21