Which one of the following is NOT a necessary assumption for the air-s

1.	Which one of the following is NOT a necessary assumption for the air-standard Otto cycle?
A.	All processes are internally reversible.
B.	Intake and exhaust processes are constant volume heat rejection processes.
C.	The combustion process is a constant volume heat addition process.
D.	The working fluid is an ideal gas with constant specific heats.
Answer» C. The combustion process is a constant volume heat addition process.

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Which one of the following is NOT a necessary assumption for the air-standard Otto cycle?

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