Flashcards on Aircraft Engine Lubrication Systems
Aircraft Engine Lubrication Systems: A Student Guide
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Aircraft Engine Lubrication
8 cards
Card 1
Question: What is the function of the oil control rings on a piston of an aircraft reciprocating engine?
Answer: They maintain the proper quantity of oil between the piston and the cylinder wall.
Card 2
Question: What is spectrometric oil analysis?
Answer: A program where oil samples are taken at regular intervals and sent to a lab; the sample is burned in an electric arc and the light analyzed for eleme
Card 3
Question: Why must spectrometric oil analysis be performed as a series of samples rather than a single sample?
Answer: A single sample is meaningless; a series taken at regular intervals is needed to measure changes in metal amounts.
Card 4
Question: What wear indications do traces of aluminum, iron, and copper in an oil spectrometric analysis suggest?
Answer: Aluminum: pistons or wrist pin plugs; Iron: cylinder walls or piston rings; Copper: main bearings or bushings.
Card 5
Question: What indications would a pilot have if the engine oil supply was low?
Answer: Oil temperature would be high and oil pressure would be low.
Card 6
Question: What is a hot-tank lubrication system?
Answer: A lubrication system in which the oil cooler is in the pressure subsystem.
Card 7
Question: What is a cold-tank lubrication system?
Answer: A lubrication system in which the oil cooler is in the scavenge subsystem so oil returned to the tank has been cooled.
Card 8
Question: What is the function of a dispersant additive as contained in ashless dispersant oil?
Answer: (No answer provided in the content.)