16) The oil dampened main bearing utilized in some turbine engines is used to Report

dampen surges in oil pressure to the bearings

provide lubrication of bearings from the beginning of starting rotation until normal oil pressure is established

provide an oil film between the outer race and the bearing housing in order to reduce vibration tendencies in the rotor system, and to allow for slight misalignment

17) After making a welded repair to a pressurized type turbine engine oil tank, the tank should be pressure checked to Report

not less than 5 PSI plus the maximum operating pressure of the tank

not less than 5 PSI plus the average operating pressure of the tank

5 PSI

18) Possible failure related ferrous metal particles in turbine engine oil cause an (electrical) indicating type magnetic chip detector to indicate their presence by Report

bridging the gap between the detector center (positive) electrode and the ground electrode

generating a small electric current that is caused by the particles being in contact with the dissimilar metal of the detector tip

disturbing the magnetic lines of flux around the detector tip

19) What would be the probable result if the oil system pressure relief valve should stick in the open position on a turbine engine? Report

Increased oil pressure

Decreased oil temperature

Insufficient lubrication

20) What is the primary purpose of the oil to fuel heat exchanger? Report

Cool the oil

Cool the fuel

De aerate the oil

EASA Questions Mod 15: Gas Turbine Engine Set 10: Lubrication System

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