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