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1105
Test 1
| Question | Answer |
|---|---|
| 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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