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What is the compression ratio of the Diesel engine?(a) 15:1 to 23:1(b) 9:1 to 14:1(c) 1:15 to 1:23(d) 1:9 to 1:14This question was posed to me during an online exam.Enquiry is from Internal Combustion Engine in section Design of IC Engine Components of Automotive Engine Design

Answer»

The correct answer is (a) 15:1 to 23:1

The explanation: The compression ignition has no spark PLUG to ignite the fuel. So, the charge is COMPRESSED to HIGH PRESSURE to self-ignite and the compression ratio RANGES from 15:1 to 23:1.



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