Exam-style question
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Which statement best describes an ideal engine cycle?.
- A.It operates with 100% efficiency.
- B.It includes all forms of energy losses.
- C.It is a theoretical model without real-world applications.
- D.It can be used to predict the performance of all engines.
Model answer
What a good answer should say
- It operates with 100% efficiency.
Explanation
Why this works
An ideal engine cycle is defined as a theoretical construct that operates at maximum efficiency, with no energy losses. The key difference is that it assumes perfect conditions, unlike practical cycles which account for inefficiencies.
Ideal cycles are used in theoretical discussions, while practical cycles are used for real engines. Therefore, the correct option accurately reflects the nature of ideal engine cycles.
Common mistake
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