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Quiz: 6 Questions To See How Much You Know About Jet Engines

Live from the Flight Deck

You might know your reciprocating engine well, but how about jet engines?


  1. 1) This particular component of an axial flow turbine engine is an integral part of the engine that helps reduce the chances of compressor stall from occurring.

    Variable stator vanes help to reduce compressor stalls of a turbine engine by regulating the airflow into the compressor section. Closing these stators will help reduce the load placed on the low pressure compressor which will help reduce an engine from surging.

    Variable stator vanes help to reduce compressor stalls of a turbine engine by regulating the airflow into the compressor section. Closing these stators will help reduce the load placed on the low pressure compressor which will help reduce an engine from surging.

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  2. 2) Turbine aircraft provide a _______ source from the engine in order to allow certain equipment to work such as packs, anti-ice and air turbine starters.

    Usually, there is a low pressure and a high pressure pneumatic bleed source that is tapped from the compressor section of the engine. This bleed is source is essential for various aircraft components.

    Usually, there is a low pressure and a high pressure pneumatic bleed source that is tapped from the compressor section of the engine. This bleed is source is essential for various aircraft components.

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  3. 3) What would you most likely see on an accessory gear drive?

    An accessory gear box is located on the side of each aircraft engine. The AGB is directly connected to the N2 shaft, which when on, drives the accessory gear box. This accessory drives oil pumps, integrated drive generator (AC electrical power) and other various components.

    An accessory gear box is located on the side of each aircraft engine. The AGB is directly connected to the N2 shaft, which when on, drives the accessory gear box. This accessory drives oil pumps, integrated drive generator (AC electrical power) and other various components.

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  4. 4) On a two-spool axial flow jet engine, the ______ shaft is connected to the main fan blades and the ______ shaft is connected to the compressor and turbine blades.

    The main fan blade is connected to the N1 shaft and the compressor and turbine blades are connected to the N2 shaft.

    The main fan blade is connected to the N1 shaft and the compressor and turbine blades are connected to the N2 shaft.

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  5. 5) Which one of these isn't a type of jet engine?

    A Mach jet isn't a type of jet engine.

    A Mach jet isn't a type of jet engine.

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  6. 6) Most commercial jets utilize high by-pass turbofan jet engines. In this type of engine, approximately _______ of the thrust comes from ______ air and ______ comes from ________.

    Roughly 80% of the total thrust comes from the accelerated high by-pass air and 20% comes from the engine core.

    Roughly 80% of the total thrust comes from the accelerated high by-pass air and 20% comes from the engine core.

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Better luck next time...

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Corey Komarec

Corey is an Embraer 175 First Officer for a large regional airline. He graduated as an aviation major from the University of North Dakota, and he's been flying since he was 16. You can reach him at corey@boldmethod.com.

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