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               j.   When does wind shear occur?


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               k.   What do the letters in the abbreviation CAT stand for?

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               l.   What type of clouds are signs of convective currents?


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               m.   What are standing lenticular and rotor clouds a sign of?


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               n.   What causes wake turbulence?


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               o.   What is the shape of the wake turbulence produced by the wing tips of a moving aircraft?


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               p.   Which of the four types of turbulence would be expected in a frontal area?

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               q.   Which of the four types of turbulence would be expected at high altitudes near the jet stream?


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