Jet Engine Basics

How long have jet engines been providing power for aircraft?

• Almost 50 years

• Almost 100 years

• Almost 150 years

• Almost 200 years

Which of Newton's Laws of Motion is responsible for an aircraft's movement?

• The 1st Law

• The 2nd Law

• The 3rd Law

• The 4th Law

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Where is the reaction force produced by the high speed jet seen?

• In the centre of the engine

• At the front of the engine

• At the tail of the engine

• Equally around the circumference of the engine

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In which direction does the thrust force move an aircraft?

• Down

• Tangentially

• Up

• Forward

If you heat the incoming air to a very high temperature it will

• Form a catalyst with the fuel to produce a high velocity jet

• Decrease in volume to produce a high velocity jet

• Turn to a liquid to produce a high velocity jet

• Expand tremendously to produce a high velocity jet

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In what form is the fuel burnt in the combustion chamber?

• Magnetised

• Atomised

• Energised

• Sterilised

Effective combustion requires air to be at

• Moderately high temperature and pressure

• Extremely high temperature and atmospheric pressure

• Low temperature and high pressure

• Moderately high temperature and negative pressure

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How many effective 'strokes' does a jet engine have?

• One

• Two

• Three

• Four

What is used inside the engine to bring the incoming air to the correct condition?

• Condenser Stages

• Co-Axial Stages

• Compensator Stages

• Compressor Stages

To sustain combustion the compressor raises the air temperature and pressure from

• 10 degrees C to 450 degrees C and 0.75 bar to 35 bar

• 50 degrees C to 1000 degrees C and 2.5 bar to 100 bar

• 100 degrees C to 500 degrees C and 25 bar to 250 bar

• -25 degrees C to 200 degrees C and 5 bar to 75 bar

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