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Lubrication Systems Questions and Correct Answers Latest Update, Graded A+
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1. What will be the result of operating an engine in extremely high temperatures using a lubricant recommended by the manufacturer for a much lower temperature? o :## *c. The oil pressure will be lower than normal. 2. (1) Gas turbine and reciprocating engine oils can be mixed or used interc...

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  • August 22, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • lubrication systems questions and correct answers

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  • Lubrication Systems
  • Lubrication Systems

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1|Page : 2024 | Grade A+




Lubrication Systems Questions and
Correct Answers Latest Update,
Graded A+

1. What will be the result of operating an engine in extremely high temperatures

using a lubricant recommended by the manufacturer for a much lower

temperature?

o :## *c. The oil pressure will be lower than normal.



2. (1) Gas turbine and reciprocating engine oils can be mixed or used

interchangeably. (2) Most gas turbine engine oils are synthetic. Regarding the

above statements,

o :## *a. only No. 2 is true.



3. An oil separator is generally associated with which of the following?

o :## *b. Engine-driven vacuum pump.



4. The time in seconds required for exactly 60 cubic centimeters of oil to flow

through an accurately calibrated orifice at a specific temperature is recorded as a

measurement of the oil's

o :## *c. viscosity.




Master01: DO NOT COPY AND PASTE!! August 22, 2024 Latest Update

, 2|Page : 2024 | Grade A+


5. Upon what quality or characteristic of a lubricating oil is its viscosity index

based?

o :## *b. Its rate of change in viscosity with temperature change.



6. Lubricating oils with high viscosity index ratings are oils

o :## *a. in which the viscosity does not vary much with temperature change.



7. Compared to reciprocating engine oils, the types of oils used in turbine engines

o :## *c. have less tendency to produce lacquer or coke.



8. The oil used in reciprocating engines has a relatively high viscosity due to

o :## *c. large clearances and high operating temperatures.



9. If all other requirements can be met, what type of oil should be used to achieve

theoretically perfect engine lubrication?

o :## *a. The thinnest oil that will stay in place and maintain a reasonable
film strength.



10. In addition to lubricating (reducing friction between moving parts), engine oil

performs what functions? 1. Cools. 2. Seals. 3. Cleans. 4. Prevents corrosion. 5.

Cushions impact (shock) loads.

o :## *b. 1, 2, 3, 4, 5.



11. Which of these characteristics is desirable in turbine engine oil?




Master01: DO NOT COPY AND PASTE!! August 22, 2024 Latest Update

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