In a typical medium speed, 4-stroke cycle diesel engine The ignition of the charge by some hot surface within the engine before the passage of spark is calledġ1. In the opposed piston diesel engine, the combustion chamber is locatedġ0. In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known asĠ9. for a four stroke cycle engine are _ the speed of the engine in r.p.m.Ġ8. The theoretically correct air fuel ratio for petrol engine is of the order ofĠ7. (D) Supercharging results in fuel economyĠ6. (C) Supercharging at high altitudes is essential (B) There can be limited supercharging in petrol engines because of detonation (A) Supercharging reduces knocking in diesel engines
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