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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| What is not a factor in the operation of an automatic fuel control unit used on turbine engines? | show 🗑
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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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| How does the back-suction type mixture control system operate? | show 🗑
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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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| show | Venturi
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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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| show | The idle discharge nozzle
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| When air passes through the venturi of a carburetor, what three changes occur? | show 🗑
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| The carburetor venturi does not do what? | show 🗑
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| How is idle cutoff accomplished on a carburetor equipped with a back-suction mixture control? | show 🗑
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| show | To decrease fuel density and destroy surface tension
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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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| What device controls the volume of fuel/air mixture to the cylinders? | show 🗑
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| show | air velocity
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| At what engine speed does the main metering jet actually function as a metering jet in a float-type carburetor? | show 🗑
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| What is the purpose of the carburetor accelerating system? | show 🗑
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| show | Venturi
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| show | It will become enriched
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| How is the desire idle speed and mixture setting adjusted? | show 🗑
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| show | The idling air bleed
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| What would be considered as the most desirable conditions for trimming a turbine engine? | show 🗑
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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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| show | The optimum idle mixture has been obtained
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| show | 10-50
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| show | The engine will not idle
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| What are benefits of using water injection? | show 🗑
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| What will an excessively lean fuel/air mixture cause? | show 🗑
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| How much air to fuel is a mixture of 11:1? | show 🗑
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| What system in a float-type carburetor increases the fuel/air ratio at high power settings? | show 🗑
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| What does the dump portion of the valve do in turbine engines that use a pressurization and dump valve? | show 🗑
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| show | humidity
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| show | Pressurization valve closed, dump valve open
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| What would a ruptured balance diaphragm cause? | show 🗑
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| show | Detonation
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| When should the needle valve and seat be replaced? | show 🗑
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| show | Mixture control position
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| show | Cams, springs, and linkages
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Created by:
Ms.Fietzek
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