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Arrange the air's journey through a podded turbofan installation in order:

1. Fan and core compression

2. Capture and diffusion in the inlet

3. Expansion through the nozzles

4. Combustion and turbine expansion

Select the correct sequence.

  • A.2, 4, 1, 3
  • B.1, 4, 2, 3
  • C.2, 1, 4, 3
  • D.1, 2, 4, 3

Answer: C

The inlet delivers the flow to the fan face at low Mach number, the compressors raise its pressure, the core burns and expands it, and the nozzles convert what is left into velocity. Each stage depends on the one before it doing its job.

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