engineering recuitment HPCL Junior Executive 2025 Mock Test Internal Combustion Engine IC Engine Cycles Otto Cycle
Which of the following statements about air standard cycles is incorrect?
1
They are analyzed assuming the working fluid behaves as an ideal gas throughout the cycle.
2
The cycles often include processes like compression and expansion that are considered isentropic.
3
No internal irreversibilities or heat losses are assumed in air standard cycles.
4
The cycles accurately predict the specific output and fuel consumption of real engines.