Practice question

What is the primary function of a diesel fuel injection pump?

  1. To lubricate the diesel engine cylinders
  2. To deliver precisely metered, highly pressurized fuel to each injector at the correct time for each cylinder's combustion stroke
  3. To cool the diesel fuel in the tank
  4. To filter water out of the diesel fuel

Answer: B — To deliver precisely metered, highly pressurized fuel to each injector at the correct time for each cylinder's combustion stroke

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