Question 212Motor Plants - Assistant Engineer70% to pass
For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an_______________.
AI Explanation
The correct answer is A) oil spray.
In a diesel engine, the pistons are typically cooled and lubricated by an oil spray system. An oil pump circulates lubricating oil through drilled passages in the engine block, and this oil is then sprayed directly onto the underside of the pistons. The oil spray helps to dissipate heat from the pistons and also provides lubrication to the piston rings and cylinder walls.
The other options are incorrect because: B) oil wick is typically used for lubricating smaller components, not for piston cooling; C) oil control rings help to regulate oil consumption, but do not supply oil directly to the pistons; and D) a drilled passage through the camshaft would not be used for supplying oil directly to the pistons.
Related Questions
#210 The upper piston rings in large, slow-speed, two-stroke cycle diesel engines are most effectively lubricated by oil _______________. #211 Shaker, circulation, and spray are the three general methods used in_______________. #213 Proper lubrication of the main bearings is more easily obtained in a single acting four- stroke cycle diesel engine than in a single acting two-stroke cycle diesel engine because_______________. #214 A diesel engine exposed to widely varying ambient temperatures should use a lubricating oil with_______________.#215 In a normally operating diesel engine, the main source of lubricating oil contamination in the crankcase is a result of the _______________.