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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| 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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