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Two Technicians Are Describing Common Rail Fuel System Operation

Question 23

Multiple Choice

Two technicians are describing common rail fuel system operation. Technician A says that electronically regulating the pressure in the high-pressure pump permits injection pressures to vary with speed and load conditions. Technician B says that a common rail stores fuel pressurized to match optimal injection pressure for any given engine speed or load condition. Who is right?


A) A only"
B) B only"
C) Both A and B
D) Neither A nor B"

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