At what point during effective stroke does the slug of fuel in the pump chamber unite with fuel in the high pressure line?
A) when delivery valve unseats
B) when retraction piston rises above seat
C) when delivery valve is fully open
D) when injector opens

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The Answer of At what point during effective stroke does the slug of fuel in the pump chamber unite with fuel in the high pressure line?
A) when delivery valve unseats
B) when retraction piston rises above seat
C) when delivery valve is fully open
D) when injector opens

At What Point During Effective Stroke Does the Slug of Fuel