MCQOPTIONS
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MCQOPTIONS
| 1. |
The exhaust valve in a four stroke cycle petrol engine __________ |
| A. | opens at 50 before bottom dead center and closes at 15 after top dead center |
| B. | opens at bottom dead center and closes at top dead center |
| C. | opens at 50 after bottom dead center and closes at 15 before top dead center |
| D. | may open or close anywhere |
| Answer» B. opens at bottom dead center and closes at top dead center | |