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Q. |
In a four stroke S.I engine the exhaust valve usually opens |
A. | 35? to 60? after BDC |
B. | 35? to 60? before BDC |
C. | At BDC |
D. | 10? to 20? before TDC |
E. | At TDC |
Answer» B. 35? to 60? before BDC |
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