The basic purpose of adjusting the fuel/air mixture at altitude is to3
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As you are climbing to your cruise altitude, you realize you forgot to lean the mixture control. What happens to fuel/air mixture entering the engine?3
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What change occurs in the fuel/air mixture when carburetor heat is applied?3
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The presence of carburetor ice in an aircraft equipped with a fixedpitch propeller can be verified by applying carburetor heat and noting3
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Why would an aviation piston engine continue running after the ignition switched is placed in the OFF position?3
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Why do most standard certificated aircraft incorporate a dual ignition system with two individual magnetos, separate sets of wires, and spark plugs?3
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What does a positive indication tell you on an ammeter?3
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The pitot system provides impact pressure for which instrument?3
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During the run-up at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action?3
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If an aircraft is equipped with a fixed-pitch propeller and a float-type carburetor, the first indication of carburetor ice would most likely be3
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Other exam subjects FAA PPL(A) - Private Pilot Airplane