Question 146Motor Plants - 1st Asst/Chief70% to pass
Surface irregularities, such as erosion and pitting on injection pump plungers, will _______________.
AI Explanation
The correct answer is A) affect fuel oil metering.
Surface irregularities, such as erosion and pitting on injection pump plungers, can alter the precise metering of fuel oil into the engine's cylinders. This change in fuel delivery can negatively impact the engine's performance across all speed ranges, not just at low speeds as suggested in option B. Options C and D are incorrect because the surface irregularities do not simply disappear due to fuel oil abrasion, nor do they increase ignition delay.
Related Questions
#144 Faulty operation of diesel engine fuel injection nozzles can be a direct cause of _______________.#145 Which of the following problems is the main source of fuel pump and injection system malfunctions? #147 One cause of diesel engine surging can be a result of _______________.#148 While examining a used fuel injection nozzle(s), one finds worn and enlarged orifices. What does this indicate about that cylinder's performance prior to nozzle replacement(s)? #149 Injection lag in a diesel engine may be caused by_______________.