Flashcards on Aircraft Fuel Systems: Components and Safety
Aircraft Fuel Systems: Components, Safety & Maintenance Guide
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Aircraft Fuel Systems
25 cards
Card 1
Question: What are two reasons Prist is added to turbojet aircraft fuel?
Answer: (1) Kills scum-forming bacteria in the fuel tank; (2) Acts as an antifreeze by lowering the freezing point of entrained water released from the fuel.
Card 2
Question: What are the two types of fuel cells used in modern aircraft?
Answer: Integral fuel cells (sealed-off portions of structure) and bladder-type cells.
Card 3
Question: After a fuel tank is purged and before entering the tank, what must the person do?
Answer: Wear proper safety equipment and have a person standing by outside the cell.
Card 4
Question: What is meant by a single-point fueling system?
Answer: A pressure fueling system where fuel is pumped into an underwing fueling port, flows into a manifold, and is directed into the selected tank from the
Card 5
Question: What gas is used to purge a fuel tank of all fuel vapors?
Answer: Carbon dioxide or nitrogen.
Card 6
Question: Why do turbojet aircraft normally have fuel temperature indicators?
Answer: To detect low fuel temperatures because water can precipitate from the fuel and freeze on filters; indicators allow using fuel heaters to keep tempera
Card 7
Question: How is a fuel leak indicated on a reciprocating-engine powered aircraft?
Answer: The dye in the gasoline stains the area around the leak.
Card 8
Question: What is the purpose of a drip gage in the fuel tank of a large aircraft?
Answer: Allows a mechanic to check the fuel level in a tank from the bottom of the tank.
Card 9
Question: What safety precautions should be taken before an aircraft is defueled?
Answer: Position the fuel truck properly, electrically ground the truck and aircraft, turn off all electrical power except that needed for defueling, and retu
Card 10
Question: What markings must appear near the filler opening of fuel tanks on reciprocating-engine-powered aircraft?
Answer: The word “AVGAS” and the minimum grade of fuel.