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| Q. |
In actual practice, the exhaust value of a four stroke I.C. engine should close |
| A. | exactly at the end of expansion stroke |
| B. | slightly before the end of exhaust stroke |
| C. | slightly after the end of exhaust stroke |
| D. | none of the above |
| E. | None of the above |
| Answer» C. slightly after the end of exhaust stroke | |
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