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3228
While cruising at 9,500 feet MSL, the fuel/air mixture is properly adjusted. What will occur if a descent to 4,500 feet MSL is made without readjusting the mixture?
| | A) The excessively rich mixture will create higher cylinder head temperatures and may cause detonation. |
| * | B) The fuel/air mixture may become excessively lean. |
| | C) There will be more fuel in the cylinders than is needed for normal combustion, and the excess fuel will absorb heat and cool the engine. |
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Anonymous says: |
17 Sep 2008 |
The explanation should read: The wording of the question is misleading. As currently stated with the word 'category' being singular, the answer would be [B] because the listed classes are all in one category. If the question were stated "... which are categories of aircraft?" the correct answer would be [A] because these are all separate categories of aircraft.
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