In slow speed two-stroke engines the fresh air entering begins when and stops as .A.the i
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In slow speed two-stroke engines, the fresh air entering begins when and stops as .
A.the inlet port is opened by the up coming piston; the port is closed by the down going
B.the inlet valve is opened by the down going piston; the inlet valve is closed
C.the inlet port is opened by the down going piston; the port is closed by the up coming
D.the inlet valve is opened
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