Engines - Oil, Fuel & Vibration Flashcards
Oil pressure is measured in ?
PSI
What pressurises oil from the reservoir?
An engine-driven oil pump
What does the fuel/oil heat exchanger do?
Cools the engine oil & provides automatic fuel heat to prevent fuel icing
The ……………….. further cools the engine oil
Backup generator oil/oil heat exchanger
Oil pressure & temperature are measured prior to ?
Entering the engine
In the (fuel) CUTOFF position the ……………… valves are closed, preventing fuel entering the engine. Engine ignition is also deactivated.
Spar & engine fuel valves
Fuel flow is measured after ?
Passing through the engine fuel valve
The airborne vibration monitoring system monitors ?
Engine vibration levels to track rotor imbalance
Where is the VIB level displayed?
Bottom of the secondary engine indications.
The vibration level is displayed in a white box. Underneath and annunciation indicates whether N1/N2 is the source of the highest vibration.
What happens if the vibration source can’t be determined?
‘BB’ is indicated & is the average vibration detected.