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Without any fear of which of the following higher compression ratios can be adopted in the petrol injection system?(a) Ignition lag(b) After burning(c) Detonation(d) Flame propagationThis question was posed to me during an interview.My enquiry is from Petrol Injection in division Petrol Engine Fuel Supply System of Automotive Engine Design

Answer»

Correct answer is (c) Detonation

For explanation I would SAY: In a fuel injector a very high-quality fuel distribution is obtained due to which higher COMPRESSION RATIOS can be adopted without and DANGER of detonation occurring. Whereas the ignition lag, after burning and flame propagation are the process of COMBUSTION.



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