6) 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? Report

The oil pressure will be lower than normal

The oil temperature and oil pressure will be higher than normal

The oil pressure will be higher than normal

7) 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 Report

specific gravity

flash point

viscosity

8) Upon what quality or characteristic of a lubricating oil is its viscosity index based? Report

Its rate of flow through an orifice at a standard temperature

Its rate of change in viscosity with temperature change

Its resistance to flow at a standard temperature as compared to high grade paraffin base oil at the same temperature

9) Compared to reciprocating engine oils, the types of oils used in turbine engines Report

are required to carry and disperse a higher level of combustion by-products

have less tendency to produce lacquer or coke

may permit a somewhat higher level of carbon formation in the engine

10) If all other requirements can be met, what type of oil should be used to achieve theoretically perfect engine lubrication? Report

An oil that combines high viscosity and low demulsibility

The thinnest oil that will stay in place and maintain a reasonable film strength

An oil that combines a low viscosity index and a high neutralization number

EASA Questions Mod 15: Gas Turbine Engine Set 9: Lubricants And Fuel

Set 1: Fundamentals

Set 2: Engine Performance

Set 3: Engine Inlet

Set 4: Eng. compressors

Set 5: Combustion Section

Set 6: Turbine Section

Set 7: Engine Exhaust

Set 8: Bearing and Seals

Set 9: Lubricants and Fuel

Set 10: Lubrication system

Set 11: Fuel Systems

Set 12: Air Systems

Set 13: Ignition Systems

Set 14: Engine Indication

Set 15: Power Augmentation

Set 16:Turboprop engines

Set 17: Turboshaft

Set 18: APU

Set 19:Powerplant Installation

Set 20: Fire Protection

Set 21:Engine Monitoring

Set 22: Engine Storage