Discussion
The Diesel cycle consists of :
Answer: B
The Diesel cycle consists of two reversible adiabatics, one isobar and one isochore.
The air-standard Diesel cycle has four processes: isentropic compression, heat addition at constant pressure (the isobar), isentropic expansion, and heat rejection at constant volume (the isochore).
Two adiabatics and two isobars describe the Brayton (Joule) cycle of the gas turbine. Two adiabatics and two isothermals describe the Carnot cycle. The Otto cycle, not offered, has two adiabatics and two isochores. The combination with one isothermal and one isochore is not a standard air-standard cycle.
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