CDC 2A651s Volume 3 by CDCmaster explores the intricacies of jet fuel systems, focusing on fuel composition, handling, and engine interactions. It assesses key skills in identifying fuel types, managing fuel-related engine issues, and understanding fuel system mechanics relevant to aircraft operation.
Two
Three
Four
Five
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Lower viscosity of jet fuels
Higher viscosity of jet fuels
Lower viscosity of free water
Higher viscosity of free water
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Flameout
Turbine seizure
Compressor shift
Overtemperature
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A green flag pops out of the filter
Fuel pressure from the fuel pump is low
A differential pressure indicator is actuated
There is no way to tell without disassembling the filter
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Regulating engine RPM
Regulating compressor discharge pressure
Controlling turbine exhaust pressure
Controlling turbine inlet temperature
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RPM
Inlet temperature
Burner pressure
Inlet pressure
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Pneumatic
Fuel injection
Hydromechanical
Electrohydromechanical
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Unified
Combined
Biomechanical
Electrosecondary
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A closed loop design
An open circuit design
The feedback control unit
A direct mechanical connection to all engine sensors
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Adjust and reseal the component
Keep the component in service to meet the mission
Forward the component to he authorized depot for reflow and resealing
Continue to keep the component in service if it is documented as a red diagonal on Form 781A, Hydromechanical Fuel Control
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Replaced
Die marked
Safety sealed and/or lockwired
Treated with a thread locking compound
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MEC
PMG
TSFC
DEEC
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Oil
Fuel
Ram air
Hydraulic fluid
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Rear compressor variable vane actuators with pneumatic (air) pressure
Rear compressor variable vane actuators with fuel pressure
Variable exhaust nozzle actuators with pneumatic pressure
Variable exhaust nozzle actuators with fuel pressure
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Fuel nozzle
P&D valve
N2 sensor
Tt 2.5 sensor
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7th
10th
13th
14th
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Fuel pump
Fuel pump controller
Signature elimination probe
DEEC
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AFP, AFC fuel/oil cooler, P&D, and fuel nozzles
MFC, fuel/oil cooler, P&D, and fuel nozzles
AFC,AFP, fuel/oil cooler, P&D, and fuel nozzles
Fuel/oil cooler, P&D, MFC, and fuel nozzles
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Gear
Gerotor
Rotogear
Sliding vane
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Gear
Gerotor
Rotogear
Sliding vane
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1/25 inch
1/250 inch
1/2500 inch
1/25000 inch
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AC high-voltage
DC high voltage
Continuity
Polarity
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Check
Relief
Bypass
Pressurizing
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Air/oil
Fuel
Hydraulic
Pneumatic
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Control the oil poppet valve
Direct oil around the fuel filter
Control oil exiting from the cooler
Direct oil around or through the cooler
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Silicone
Carbon
Synthetic
Labyrinth
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Soft metal construction; these seals can be damaged easily
Soft metal construction; they are sharp and can cut your hand
Hard metal construction; they are sharp and can cut your hand
Hard metal construction; these seals can damage the bearing races
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Air pressure
Oil pressure
Spring pressure
Hydraulic pressure
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JP-4 for 60 minutes
PD-680 for 30 minutes
Kerosene for 60 minutes
Engine lubricating oil for 30 minutes
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Oil jet pressure
Fan turbine speed
Oil nozzle condition
Number of oil jets used
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Aeration
Induction
Convection
Compression
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Scavenge only
Breather only
Scavenge and pressure
Scavenge and breather
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Dry sump
Wet sump
Cold tank
Hot tank
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Cold tank
Wet tank
Dry tank
Hot tank
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Wet tank
Dry tank
Hot tank
Cold tank
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Oil tank
Gearbox
Oil filter
Oil pump
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Button is defective
Scheduled oil change is due
Design ambient pressure has been exceeded
Design pressure differential has been exceeded
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Secondary fan airflow as a coolant
Secondary fan airflow as an oil heater
Primary core engine airflow as a coolant
Primary core engine airflow as an oil heater
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Oil relief valve
Filter poppet valve
Oil pressure transmitter tap
Filter assembly bypass valve
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1 and 2
1 and 3
2 and 3
2 and 4
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Upon request from the depot
Automatically from the depot
Upon request from the manufacturer
Automatically from the manufacturer
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Toxicity
Viscosity
Alkalinity
Corrosiveness
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Dispose of any portion not immediately used
Store remaining portion immediately after use
Dispose of any portion not used within 60 days
Store remaining portion in clearly marked containers
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More oil sampling
More engine removals
Less unnecessary maintenance
Less wear metal found in the oil
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Base commander
Unit commander
Program manager
Unit safety officer
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Project monitor
Logistics commander
Propulsion flight chief
Laboratory supervisor
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Wear metals
Friction metals
Precious metals
Transformation metals
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Accelerates the rear of wear, decreasing the production of wear metal particles
Accelerates the rate of wear, increasing the production of wear metal particles
Slows the rate of wear, decreasing the production of wear metal particles
Slows the rate of wear, increasing the production of wear metal particles
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