K.C.S.E Physics Q & A - MODEL 2011PP1QN09
Figure 7 shows part of a petrol engine, in which air flowing under atmospheric pressure passes into a constriction, where it mixes with petrol. The mixture then flows into a combustion cylinder.
Explain what causes the petrol to move from the petrol chamber to the air stream in the constriction when the piston is moved downwards.
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