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Aircraft Fuel Systems > Fuel Systems > Flashcards

Fuel Systems Flashcards

1
Q

Naturally aspirated single engine airplanes

A

10 secs. After switching for full flow

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2
Q

Turbo charged single engine and multiengine

A

20 secs. After switching for full fuel flow

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3
Q

Fuel tanks requirements

A

Tank must have a expansion space not less then 2% of the tank capacity

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4
Q

Bladder cells

A

Bladder is held in place buttons or snaps

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5
Q

Drip sticks

A

Used to measure the fuel in the tank

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6
Q

Ejector

A

Used to scavenge filial from remote areas of the tanks, no moving parts, uses Venturi principle

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7
Q

Filler caps

A

Word fuel, minimum fuel grade

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8
Q

Electronic

A

Measures the weight of fuel (lbs) rather then volume

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9
Q

Fuel jettison system

A

Primary purpose is to quickly lower landing weight , usually accomplish through a common manifold and outlet in each wing.

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10
Q

Fuel tanks cleaning

A

Wash out with hot water and detergent, then steam clean, purge fuel tanks with carbon dioxide

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11
Q

Fuel flow requirements for gravity feed fuel system

A

Ay least 150% of the takeoff fuel consumption

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12
Q

Fuel flow requirements for pressure pump fuel systems

A

At least 125% of takeoff flow

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13
Q

What are the requirements placards for recip. Engines

A

Avgas,min fuel grade

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14
Q

Three types of fuel tanks

A

Integral,Rigid removable,bladder cell,surge

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15
Q

Why are baffles installed in integral tanks

A

To prevent sloshing of fuel and fuel surging

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16
Q

Which tank is formed by the aircraft structure

A

Integral tanks

17
Q

What is the purpose of check/flapped valves

A

Prevent fuel from flowing away from boost pumps

18
Q

What are surge tanks designed for

A

Overflow and spillage

19
Q

Drip sticks measure what

A

Amount of fuel in the tank

20
Q

Why are centrifugal pumps used

A

To prevent vapor lock

21
Q

How does a jet pump operate

A

Used the venteri principal, used to scavage fuel from remote areas of the tank

22
Q

Where is the master strainer located

A

Lowest point of the system

23
Q

What does an electronic fuel quantity indicator consist of?

A

Bridge circuit,amplifier,indicator,no moving parts

24
Q

Advantage of pressure fueling

A

Allows all tanks to fill from a single point, reduces the chance of fuel contamination

25
Q

Where should defueling be accomplished? Which tank should be de fueled first?

A

Im the open air, outboard wing tank first

26
Q

Cross feed systems

A

Provides a means to maintain a balanced fuel load

27
Q

Purpose of a fuel jettisoning system and how does it work?

A

Quickly lower landing weight

28
Q

How are fuel tanks cleaned

A

With hot water and detergent

29
Q

Used to purge fuel tanks

A

Carbon dioxide

30
Q

Four classifications of fuel leaks

A

Stain,seep, heavy seep,running leak

Aircraft Fuel Systems (1 decks)

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