For the same values of peak pressure, peak temperature

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For the same values of peak pressure, peak temperature and heat rejection, the correct order of efficiencies for Otto, Duel and Diesel cycles is

1. η_otto > η_Dual > η_Diesel
2. η_Diesel > η_Dual > η_Otto
3. η_Dual > η_Diesel > η_Otto
4. η_Diesel > η_Otto > η_Dual

Correct Option: B

For same values of peak pressure and temperature. Diesel cycle is most efficient and Otto cycle is least. Efficiency of dual cycle lies in between.η_Diesel > η_Dual > η_Otto