Question 230Motor Plants - Assistant Engineer

The correct answer is D) pressure feed. On most modern diesel engines, the main and connecting rod bearings receive their lubricating oil through a pressure feed system. This is the standard design for diesel engines, where the oil pump generates pressure to deliver lubricating oil to the critical engine components, including the main and connecting rod bearings. The pressure feed system ensures a reliable and consistent supply of oil to these bearings, which is crucial for proper lubrication and engine performance. The other answer choices are incorrect because: A) banjo feed is typically used for fuel lines, not lubricating oil; B) splash feed relies on the rotating motion of the crankshaft to distribute oil, which is less reliable than a pressure feed system; and C) gravity feed systems are not commonly used in modern diesel engines.