Question 57Motor Plants - Assistant Engineer70% to pass
The amount of fuel delivered by a unit injector is controlled by the_______________.
AI Explanation
The correct answer is C) rack position.
The amount of fuel delivered by a unit injector is controlled by the rack position, which regulates the fuel flow. The rack is a mechanical component that moves in response to the engine throttle, adjusting the fuel supply to the injectors and controlling the engine's power output.
The other options are incorrect because: A) the camshaft controls the timing of the fuel injection, not the amount; B) the main spring is not involved in regulating the fuel delivery; and D) the engine speed is a result of the fuel delivery, not a controlling factor.
Related Questions
#55 According to the illustration, fuel cutoff timing in the cylinder is controlled with the component that is identified as the letter_______________. Illustration MO-0097 #56 Regarding the fuel injector shown in the illustration, the purpose of piece #38 is to_______________. Illustration MO-0059 #58 In a unit injector, an upper helix and lower helix are machined in the lower part of the plunger for _______________.#59 The control rack to a unit injector regulates fuel delivery by_______________. #60 Which type of diesel engine fuel nozzle is shown in the illustration? Illustration MO-0059