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Aircraft Fuel Systems > Aircraft Fuel Systems > Flashcards

Aircraft Fuel Systems Flashcards

1
Q

What are the fuel flow requirements for gravity feed fuel systems?

A

At least 150% of the take off fuel consumption

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2
Q

What are the fuel flow requirements for pressure pump fuel systems

A

At least 125% of takeoff fuel flow

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3
Q

What are the required placards for recip engines

A

Avgas, Minimum fuel grade

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4
Q

What are the three types of fuel tanks?

A

1.Integral/wet wing 2. Rigid removable 3. Bladder Cell 4. Surge

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5
Q

Why are baffles installed in integral tanks?

A

To prevent sloshing of the fuel and fuel surging

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6
Q

Which tank is formed by the aircraft’s structure?

A

Integral

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7
Q

What is the purpose of check/flapped valves?

A

To prevent fuel from flowing away from the boost pump

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8
Q

What are surge tanks designed for?

A

To contain fuel overflow and spillage

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9
Q

Drip sticks measure what?

A

Fuel quantity

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10
Q

Why are centrifugal pumps used?

A

To prevent vapor lock in fuel lines at high altitudes

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11
Q

How does a jet pump operate?

A

Using the Venturi principle/ has no moving parts

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12
Q

Where is the master strainer located?

A

In the lowest point of the system

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13
Q

What does an electronic fuel quantity indicator consist of? How many moving parts does it have?

A

A bridge circuit, amplifier, indicator, and a tank unit
Has no moving parts in the tank

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14
Q

What is the advantage of pressure fueling?

A

Allows all tanks to be filled from a single point

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15
Q

What are the general types of fuel quantity indicators?

A
  1. Sight glass
  2. Mechanical
  3. Electrical
  4. Electronic
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16
Q

Types of Fuel Systems

A
  1. Gravity feed
  2. Pressure feed
  3. Fuel Subsystems
  4. Primer system
  5. Vent systems
17
Q

Where should defueling be accomplished? Which tanks should be defueled first?

A

In the open (Outside) outboard wing tanks first, equipped with swept back wings

18
Q

What Is a cross feed system?

A

Allows any tank to supply any engine

19
Q

What is the purpose of a fuel jettisoning system and how does it work?

A

To quickly lower landing weight by dumping fuel overboard accomplished by a common manifold and outlet on each wing

20
Q

How are fuel tanks cleaned?

A

Washed out with hot water and a detergent, than steamed cleaned

21
Q

What is used to purge fuel tanks?

A

Carbon Dioxide

22
Q

What are the four classifications of fuel leaks?

A

Stain, seep, heavy seep, running leak.

23
Q

How are bladder tanks held in place?

A

Buttons or Snaps

Aircraft Fuel Systems (1 decks)

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