Lubrication Systems Questions and Correct Answers Latest Update, Graded A+
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Course
Lubrication Systems
Institution
Lubrication Systems
A reciprocating engine is found to have excessive oil consumption without evidence
of any oil leaks. What is the likely cause?
o :## The piston rings are worn or broken.
What are the functions of lubricating oil in reciprocating engines?
o :## To reduce friction between moving parts and remove...
Lubrication Systems Questions and
Correct Answers Latest Update,
Graded A+
A reciprocating engine is found to have excessive oil consumption without evidence
of any oil leaks. What is the likely cause?
o :## The piston rings are worn or broken.
What are the functions of lubricating oil in reciprocating engines?
o :## To reduce friction between moving parts and remove heat.
Name two important characteristics of aircraft engine oil.
o :## The oil must be light engough to circulate freely yet heavy engough to
provide the proper oil film at engine operating temperatures.
What could happen to an oil that is too low in viscosity at normal engine operating
temperatures?
o :## it may become so thin that the oil film between moving parts is easily
broken, resulting in premature wear.
What are some of the factors that must be considered by an engine manufacturer
in determining the proper grade of oil for a particular engine?
o :## The operating load and temperature as well as the rotational speed.
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