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Draw super imposed PV and TS diagrams of otto cycle..........

Question: 

Draw super imposed PV and TS diagrams of otto cycle, diesel cycle and dual cycle to compare their efficiencies under the following conditions: (i) for same compression ratio and heat rejection (ii) for same maximum pressure and temperature and heat rejection.

Answer: 

Same compression ratio and same heat rejected heat rejection

ii) For same maximum pressure and temperature and heat rejection