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Fuel systems (updated)
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3 causes of vapor lock
Low fuel pressure
High fuel temp
Exsessive fuel turbulance
100ll Avgas labeling is which colors
Blue and red
Jet a labeling is which color
Black and white
Jet b labeling is which color
Yellow and black
What color is avgas
Blue
Which color is jet fuel
Colorless or straw
Which instrument is used for testing volatility
Reid vapour pressure tester
What does the acronym ASTM stand for
American society for testing and materials
At standard day what is the true weight of jet-a and avgas
Jet-a 7lbs/gal
Avgas 6lbs/gal
Name 4 different fuel contaminations
Water
Bacteria
Ice
Incorrect fuel
What is the freezing point of avgas
-70 deg
What is the freezing point of jet-a
-47 deg
What is the freezing point of jet-b
-51 deg
What is AIP
Aeronatical info publication- standard used by pilots for fuel weight
What is the integral tank called that is used on the leading edge or fixed wing aircraft And what are they made of
D-section fuel tanks
Made of honeycomb and aluminum
What is the lowest part of an integral tank called
Collector bay
Each tank must have _____ of the tank for fuel consumption. It must be impossible to fill this portion of the tank during normal on ground attitude
2%
Where must fuel filler marking be located on the aircraft
At or neer the filler cap
Fuel caps on recip aircraft must have which fuel marking designation
The word AVGAS and minimum fuel grade
Turbine engine aircraft must have which markings ne'er the filler cap
The word "jet fuel" and the permisable fuel designation
Fuel sump drain perform which 2 tasks
Allows tank to be used or -drained to 1/4% or 1/16 of a gallon
-allaw drainage of all hazardous materials
6 primary functions of a fuel drain
1. Have a locking mechanism
2. Be accesible
3. Easy opened and closed
4. Allow fuel to be caught for examination
5.have a visual mark to indicate fully closed
6. Be situated or protected incase of gear up landing
What's the main purpose for jettison fuel
To achieve allawable landing weight
Lines and fittings size depend on what ?
Amount of flow
True or false flexible lines are calendar lifed
True
False
True
2 standard practices for flexible lines through a bulkhead
Grommets
Adel clamp (cousioned)
How should fuel lines and fittings be marked
Red and white tape with stars and marked "fuel"
3 types of valves
Gate type
Motor gate type
Solenoid type
5 types or pumps
Boost (aux)
Scavenge
Cross feed
Main
Emergency
Which additive in avgas 100ll promotes corrosion but acts as a(n) anti knock
Tetraethylene
Temperature at which fuel will emit ignitible vapors
Flash point
When fueling an craft what must be done in preparation
-Ground fueling truck to aircraft
- revove tank pilled plugs for air displacement
Where is the main filter locate at in the fuel system
At the lowest portion outside the fuel tank
Which fuel tank material is constructed of tin and lead
Turneplate
What are the 5 types of fuel quantity indicator systems
1. Float and gear assembly
2. Dc indicator
3. Capacitance system
4. Measuring stick (mag stick)
5. Drip stick
What are the 3 types of flow measuring systems
1. Vane type - is also connected to an auto syn
2. Mass flow - uses a turbine to measure density and flow
3. Electronic fuel flow indicator - calculates
:
- fuel used
-fuel left
- flow
What are the two most common types of fuel delivery systems
1. Gravity fed
2. Pump fed
Fuel leak classifications fall under which 4 categories
1. Slow seep- 3/4" max
2. Seep- 3/4"-1 1/2" max
3. Heavy seep-1 1/2"-4"
4. Running leak
When working on fuel tanks what safety precautions should be taken
Spark free tools
Explosion proof light
Resirator
Author
Byronallen
ID
110392
Card Set
Fuel systems (updated)
Description
fuel systems updated
Updated
2011-10-20T00:44:36Z
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