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The air standard efficiency of an I C engine depends on...

This question belongs to Mechanical Engineering Internal Combustion Engines (I.C. Engines)
Internal Combustion Engines (I.C. Engines)
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The air standard efficiency of an I.C. engine depends on

Answer & Solution
Correct Answer: Option C
The air standard efficiency of an I.C. engine depends on Compression ratio. The compression ratio in I.C. engine is directly proportional to the thermal efficiency, so as it increases, then its thermal efficiency will increase. The thermal efficiency of petrol and gas engines is about 30% and the thermal efficiency of diesel engines is about 70%.
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