1. Exhaust will be smoky
  2. Piston rings would stick into piston grooves
  3. Engine starts overheating
  4. Scavenging occurs
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1 Answers

Answer: Option 4

If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the Scavenging occurs. scavenging is the process of pushing exhausted gas-charge out of the cylinder and drawing in a fresh draught of air or fuel/air mixture for the next cycle.

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