FAA Aircraft Dispatcher Practice Exam

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What is typically observed when an occluded front occurs?

  1. Warm air is trapped underneath cold air

  2. Cold air continuously rises

  3. Warm air is forced upwards by colder air masses

  4. Both air masses move in the same direction

The correct answer is: Warm air is forced upwards by colder air masses

When an occluded front occurs, the interaction of cold and warm air masses leads to warm air being forced upwards. This happens because an occluded front is formed when a cold front overtakes a warm front. The cooler air mass associated with the cold front lifts the warmer air mass that is ahead of it, resulting in a progression where the warmer air is pushed aloft. This upward movement of warm air is significant because it can lead to the development of clouds and potentially precipitation, as the lifted air cools and condenses. Understanding this process is vital for predicting weather phenomena, as occluded fronts are often associated with complex weather patterns. The other scenarios do not accurately depict the dynamics of an occluded front, as they either misrepresent the behavior of air masses or the conditions that exist in such a meteorological situation.

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