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| Q. |
Which of the following is the correct statement? |
| A. | all the reversible engines have the same efficiency |
| B. | all the reversible & irreversible engines have the same efficiency |
| C. | irreversible engines have maximum efficiency |
| D. | all engines are designed as reversible in order to obtain maximum efficiency |
| Answer» A. all the reversible engines have the same efficiency | |
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