Turbine 4

In a hot tank lubrication system, the oil cooler is located in the ___________ subsystem.
Pressure
Vent
Scavenge
The terminating point of the vent subsystem is the opening to the ______________.
Atomosphere
Oil tank
Pressure pump supply
Chip detectors are usually located in which lubrication subsystem?
Pressure
VGent
Supply
Scavenge
Synthetic lubricants used in turbine engines have good load-carrying ability and high viscosity for good flow ability at high temperatures.
True
False
The two types of synthetic turbine oils in common use today include Type 2, Mil-PRF-23699 and ____________.
Type 1, Mil-PRF-5606
Type 2, Mil-PRF-7810
Type 1, Mil-PRF-7808
Spectrometric oil analysis (SOAP) samples used engine oil to check for what condition of the engine?
Engine wear
Oil viscosity
Oil breakdown
Oil consumption in turbine engines is much lower compared to reciprocating engines.
True
False
Why is the oil tank pressurized by engine vent air?
(NO) It helps cavitation of the pressure pump (NO)
It prevents oil sloshing and oil foaming
It suppresses oil foaming due to entrained air in the oil scavenge lines
Fan turbine engine dry-sump lubrication systems store and supply the engine oil in a tank found ______________.
Separately, on the engine only
Separately, installed on the engine or in the aircraft
Integral with the bearing sumps
The purpose of engine oil is to reduce friction, clean, and cool the engine bearings. This statement is:
True
False
What is the TSFC of an engine in flight when Fn = 34,000 lbs and the fuel flow meter reads 15,575 PPH?
.46
529550000
2.18
Jet-A contains a higher BTU value per gallon than aviation gasoline. This statement is:
True
False
What is the TSFC of an engine in flight when Fn = 56,000 lbs and the fuel flow meter reads 30,800 PPH?
.55
1724800000
1.81
An engine that utilizes a FADEC engine control system normally requires an engine trim adjustment after the installation of the FADEC box or fuel control unit. This statement is:
True
False
EPR is the measure of the thrust output of the engine. It is calculated by ratio of _________________.
Turbine total outlet pressure to compressor total inlet pressure
(NO) Compressor outlet total pressure to turbine total outlet pressure
Burner total pressure to compressor total inlet pressure
Fuel metering for turbine engines is accomplished by scheduling a specific volume of fuel flow, rated in gallons per hour, to the burner. This statement is:
True
False
Which engine control fuel metering system allows greater operational flexibility, maximizes engine performance and has the greatest number of inputs available to schedule various engine control system components?
FADEC
Supervisory EEC
Hydro - mechanical
The purpose of the engine trim check is to assure maximum rated thrust is being produced. This statement is:
True
False
For engines that include a water-injection system, at what power setting is water injection used?
Take off
Max continuous
Climb
What is the relationship that exists between the main metering valve orifice area and the weight of fuel flow through that orifice?
A weight vs. Flow relationship
A linear relationship
(NO) volume vs. Weight relationship
Which type of fuel nozzle controls primary and secondary fuel flows to the nozzle tip using control valves and springs internal to the nozzle?
Duplex
Simplex
When a FADEC engine control system is integrated into the airframe electronic systems, the power lever is linked to the electronic engine control by the
Thrust lever resolver (TLR)
Mechanical linkage
Thrust lever receiver
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