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Fuel Metering

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show Mixture control position  
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How is the fuel control adjusted when trimming a turbine engine?   show
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How does an EEC obtain the most effective engine operation?   show
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What is generally turned off when trimming an engine>   show
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What causes the automatic mixture control to respond in reciprocating engines?   show
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What is the fuel metering force of a conventional float-type carburetor in its normal operating range?   show
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show Rich at rated power  
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How would you adjust the level of the float in a float-type carburetor?   show
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How would you achieve better fuel vaporization and control of fuel discharge, especially at lower engine speeds?   show
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show By varying the pressure acting on the fuel in the float chamber  
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What occurs when a back-suction type mixture control is placed in IDLE CUTOFF?   show
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show by the inclusion in the carburetor of a spring in the unmetered fuel chamber  
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If the bellows of the automatic mixture control (AMC) in a pressure carburetor ruptures while the engine is operating at altitude, how will the mixture be affected?   show
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show the edge of the float  
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What component measures the amount of air delivered to the engine?   show
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If the engine is not running and the carburetor leaks fuel, what is the likely cause?   show
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From where is fuel discharged during idling speeds on a float-type carburetor?   show
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show Velocity increases, temperature decreases, and pressure decreases  
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The carburetor venturi does not do what?   show
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show By introducing low pressure (intake manifold) air into the float chamber  
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What is the primary purpose of an air bleed in a float-type carburetor?   show
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Where is the measurement usually made to determine the float level in a float-type carburetor?   show
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show mixture control  
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show throttle valve  
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show air velocity  
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show All RPM's above idle range  
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What is the purpose of the carburetor accelerating system?   show
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What carburetor component actually limits the desired maximum airflow to the engine at full throttle?   show
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What will happen to the mixture on a carburetor without an automatic mixture control as you ascent to altitude?   show
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show With the engine warmed up and operating  
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show The idling air bleed  
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show No wind and low moisture  
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show At rated power and at idle  
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show Changes in RPM or manifold pressure  
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When the mixture control is moved to IDLE CUTOFF, the manifold pressure decreases and RPM increases momentarily before the engine stops. What does this indicate?   show
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When checking the idle mixture on a carburetor, how much of an increase in RPM should there be if the idling mixture is correct?   show
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show The engine will not idle  
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show Increase engine power and control detonation and preignition  
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What will an excessively lean fuel/air mixture cause?   show
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show 1 part fuel to 11 parts air  
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show The economizer system  
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show Drains the engine manifold lines to prevent fuel boiling  
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show humidity  
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What position will the pressurization and dump valves be in when the engine is shut down?   show
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What would a ruptured balance diaphragm cause?   show
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What occurs when the air/fuel mixture burns too fast?   show
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When should the needle valve and seat be replaced?   show
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When operating a gas turbine engine fuel control unit, what factor is NOT used?   show
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show Cams, springs, and linkages  
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Created by: Ms.Fietzek
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