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 and close anywhere |
| Answer» B. Opens at bottom dead center and closes at top dead center | |