How a jet engine works

In which direction does the thrust force move an aircraft?

• Down

• Tangentially

• Up

• Forward

What is the role of exhaust nozzle for jet engines?

• Reduce the air speed before entering into compressor

• Convert the internal gas energy from the turbine to the kinetic energy for producing thrust

• Compress the air for increasing the density before entering into the burner

Compressor will squeeze air until the air get hotter and air ________ increase.

• Pressure

• Ambient

• Turbine

• Flight

What happen in combustion chamber?

• Fuel will injected and it burned with hot air.

• Air was compressed and getting hotter.

• Hot air rotate turbine blade.

• Air cooled to ambient temperature.

Turbine convert ______(A)______ energy to ______(B)_______ energy.

• A power

  B propulsion

• A mechanical

  B electrical

• A kinetic

  B potential

• A chemical

  B mechanical

Another term for burning is

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion

What is the name of the section labeled 3?

• Combustor

• Compressor

• Fan

• Turbine

What type of engine is pictured?

• Internal Combustion

• Turbojet

• Turbofan

• Turboprop

What is the purpose of an afterburner

• Increase thrust

• Increase efficiency

• Increase cooling

• Increase combustion

Which law states that for every action there is an equal and opposite reaction?

• 1st Law

• 2nd Law

• 3rd Law