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1105 1st Test

QuestionAnswer
How can water and fuel be separated in fuel systems? By allowing the fuel/water mixture to settle, or by coalescing
To reduce bacterial growth and to “dry” the moisture.... An additive is included in the fuel
Gas turbine fuels are generally comprised of what two main elements? Hydrogen and carbon
As the heat value per gallon decreases the density of fuel must.... also become lower
What is the amount of heat energy released by a fuel? Heat value
Once crude oil is distilled refineries use a what? cracking AND polymerization process
The volatility specification will be considered... When trying to start a turbine engine
Why are the specifications and characteristics of a fuel precisely designed? To not cause harm to the engine.
How many filtering components are in the main system? 2
Why is a preheater usually used in an aircraft To keep ice crystals from forming in the fuel and causing a constricted flow
What are strainers and filters used for? Reducing/eliminating the contaminants in fuel. The strainer also lessens the amount of water in the fuel.
FAR 25.969 Each fuel tank must have an expansion space of no less than 2% of tank capacity. Maximum is not specified
FAR 29.1557 Section C 1 Fuel filler openings must be marked at or near the filler cover with-The word fuel, the minimum fuel grade, maximum permissible fueling supply pressure and the maximum permissible defueling pressure
FAR 25.1553 If the unusable fuel supply or any tank exceeds one gallon, or five percent of the tank capacity, whichever is greater, a red arc must be marked on its indicator
How does temperature affect fuel weight? Colder fuel is heavier than warmer fuel.
Which FAR covers the requirements of fuel jettisoning? Part 23, 25, and CAM 4b
What minimum required markings must be on each fuel filler cover on utility category aircraft? The word "AVGAS" and the minimum fuel grade.
What is the one disadvantage of using aromatic aviation fuels? It deteriorates rubber parts
What minimum required markings must be on each fuel filler cover for reciprocating engine powered airplanes. The word "AVGAS" and the minimum fuel grade
How is fuel jettisoning usually accomplished Through a common manifold and outlet in each wing.
What is the primary purpose of an airplanes fuel jettisoning system? To lower the landing weight
What does a large transport aircraft manifold system allow? 1. All the tanks to be serviced through a single connection 2. Any engine can be fed through any tank 3. All engines can be fed through all tanks at the same time 4. A damaged tank can be isolated from the rest of the fuel sytem
What are boost pumps used for? To prevent bubbles in the fuel after it leaves the tank when atmospheric pressure is lower than the fuel vapor pressure.
What is the purpose of the pump cross-feed valve? To allow operation of engines from one tank.
How is the outlet fuel pressure regulated on a submerged, single speed, centrifugal type pump? By the pumps design and internal clearances
What is one purpose of a fuel tank vent? To maintain atmospheric pressure.
The capacitance type (electronic) fuel quantity indicator.... has no moving parts in the tank.
What type of remote reading fuel quantity indicating system has several probes installed in each fuel tank? Electronic
Which aircraft fuel quantity indicating system incorporates a signal amplifier? Electronic
The electronic type indicating system consist of a bridge circuit, and.... an amplifier, an indicator, and a tank unit.
A probe or a series of probes is used in what kind of fuel quantity indicating system? Capacitor
Created by: mattpayne001
 

 



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