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Scavenging air in diesel engine means

This question belongs to Mechanical Engineering Internal Combustion Engines (I.C. Engines)
Internal Combustion Engines (I.C. Engines)
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Scavenging air in diesel engine means

Answer & Solution
Correct Answer: Option D
In automotive usage, 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. This process is essential in having a smooth-running internal combustion engine.
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