1.

In a four stroke cycle petrol engine, , the compression

A. starts at 40 after bottom dead centre and ends at 30 before top dead centre
B. starts at 40 before bottom dead centre and ends at 30 after bottom dead centre
C. starts at bottom dead centre and ends at top dead centre
D. may start and end anywhere
Answer» B. starts at 40 before bottom dead centre and ends at 30 after bottom dead centre


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