In a typical medium speed 4-stroke cycle diesel engine the inlet valve_____________________?

I.C. Engines 01/09/2021

A. opens at 20° before top dead center and closes at 35° after the bottom dead center
B. opens at top dead center and closes at bottom dead center
C. opens at 10° after top dead center and closes 20° before the bottom dead center
D. may open or close anywhere
E. remains open for 200°.

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