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1105

Test 1

QuestionAnswer
What are the two main fuels used in Aviation? Avtur and Avgas
What color is 80 Grade Fuel? Red
What color is 100 Grade Fuel? Green
What color is 100LL Grade Fuel? Blue
Avtur gas is used in what type of engine? Gas-turbine and new diesel
Avgas is used in what type of engine? Conventional piston engines
What is Flashpoint Lowest temperature at which sufficient vapours above the liquid will ignite without sustaining a flame.
Integral (Wet-wing) Fuel Tank Is part of the basic structure of the wing, is sealed on the outside.
Rigid Removable Fuel Tank Is installed in a compartment designed to hold the tank, is sealed on the inside.
Bladder Fuel Tank Is a reinforced rubber bag place in a non-fuel-tight compartment
Cross feed Is transferring fuel from one tank to another
Collectors Tank Keeps engine from fuel starvation, which can be caused by sloshing
How are fuel pumps lubricated? By the fuel, can over heat if ran dry
Boost pumps Are used to reduce cavitation in fuel transfer and priming, used as back up for engine driven pump (are electrical)
Cavitation Air pocket, can cause pump damage and interrupt fuel flow
Vaper Lock Is caused by fuel starvation, the fuel is heated to much causing the fuel to vaporize and form a bubble that blocks the fuel line.
Fuel Valves Used to guide the flow of fuel, must have fuel shut off valve
Fuel Heaters Is usually accomplished by some form of heat transfer, ensure the fuel is warmed to optimum operating temperatures
Fuel Vents Must be heated or flush mounted to protect against icing conditions.
What is FAR 25.1553 Fuel Quantity Indicator- if the unusable fuel supply for any tank exceeds 1 gal or 5%, whichever is greater, a red arc must be marked on its indicator
What is FAR 29.1557 Section C What Marking must fuel tanks have: I- the word "Fuel" II- minimum fuel grade IV- maximum pressure for fueling and defueling must be near where you are fueling
What FAR are fuel tanks in? Parts 23 and 25
What is the advantage of Centrifugal pumps If the pump is not in operation fuel can still flow through the pump
What is FAR 25.969 Fuel tank expansion space, 2% minimum, max doesn't matter
What is Specific Gravity? Compared weight of fluid to distilled water at a certain temperature
Flame Propagation Refers to the propagation of the reaction zone or “combustion wave” through a combustible mixture.
Oil-dilution system Oil congeals in cold weather, the oil is diluted after the engine has been operated and is fully warmed up.
Created by: Tiana Arch
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