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What is the correct answer?

4

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

Correct Answer :

A. Starts at 40° after bottom dead centre and ends at 30° before top dead centre


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