单选题 1分

Persistent knocking of one cylinder of a diesel engine ceases when the fuel supply to that cylinder ...

Persistent knocking of one cylinder of a diesel engine ceases when the fuel supply to that cylinder is secured. This problem may be a result of ________.
  • A. low loading of that cylinder
  • B. faulty combustion in that cylinder
  • C. sluggish piston ring action
  • D. excessive piston cooling

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