1. The purpose of this diagram is to show the components of a modern diesel locomotive.
2. The Air compressor is located behind the diesel engine.
3. It informs the viewer about the key parts of what makes a diesel locomotive work.
How do modern locomotives work?
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Diesel fuel ignition pushes a piston connected to the generator. The resulting current drives the motor connected to the wheels of the locomotive. A "diesel" internal combustion engine uses the heat generated by the compression of air during the ascending cycle of the stroke to ignite the fuel.
The powers the piston connected to the generator. The generator then produces the energy to power the motor, which turns the wheels to propel the locomotive.
Learn more about Air compressors here: https://brainly.com/question/15084937
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