What is the primary purpose of a fuel shutoƯ valve?

Isolate fuel flow in emergencies or maintenance

Balance fuel distribution between tanks

Prevent excessive pressure buildup in tanks

Control fuel surges during flight

Which is the correct characteristic of an APU Feed Pump?

Type: Electrical Pump, Location: Right inner wing tank

Type: Jet Pump, Location: Right inner wing tank

Type: Electrical Pump, Location: The centre fuel tank

Type: Jet Pump, Location: The centre fuel tank

What is the purpose of the Fuel Scavenge System in the A350?

To transfer unusable fuel from low points in the tank to the main usable fuel supply

To remove contaminants from the fuel

To balance the fuel between wing tanks

What is the main function of the Refuel/Defuel Valve in the A350?

To allow controlled refueling and defueling operations

To balance fuel distribution between tanks

To allow the transfer of fuel from one wing tank to another

To prevent over-pressurization of the tanks

How does the A350 prevent fuel freezing at high altitudes?

By heating fuel using the engine oil system

By mixing fuel with anti-freeze additives

By using a dedicated fuel heater in each tank

By continuously circulating fuel through the wing tanks

What is the main function of the fuel inerting system in the A350?

To reduce the risk of fuel tank explosions by replacing oxygen with nitrogen

To transfer excess fuel to auxiliary tanks

Why does the A350 have a fuel recirculation system?

To mix fuel additives for better combustion

To cool the engine oil and prevent fuel freezing

To remove contaminants from the fuel before reaching the engines

To balance fuel levels between left and right tanks

What is the purpose of the fuel vent surge tanks?

To collect excess fuel during refueling and prevent spillage

To store emergency fuel reserves

To increase the aircraft's total fuel capacity

To filter impurities before fuel enters the main tanks

What is the primary function of the Crossfeed Valve in the Airbus A350 fuel system?

To allow fuel balancing between the left and right wing tanks

To transfer fuel from the center tank to the wing tanks

To regulate fuel pressure from the engine fuel pumps

To automatically shut off fuel supply in case of a fuel leak

Where is the Crossfeed Valve located in the A350 fuel system?

Between the left and right wing tanks

Between the center tank and wing tanks

How is the Crossfeed Valve controlled in the A350?

Automatically by the fuel management system and manually via the cockpit

Only automatically without pilot input

By ground crew during refueling

What happens if the Crossfeed Valve fails in the closed position?

Fuel imbalance may occur between the left and right tanks

The aircraft will be unable to refuel

The center tank will drain first before the wing tanks

How does the cockpit display fuel system status?

Through ECAM (Electronic Centralized Aircraft Monitoring) system

Why does the A350 use a vent system for its fuel tank?

Equalize pressure and prevent damage

What happened if a fuel imbalance is detected?

Aircraft will dump the extra fuel

What is purpose of Fuel Jettison?

Reduce aircraft weight for emergency landing

Increase fuel efficiency during flight

What is the main purpose of fuel system in A350?

to store and supply fuel to engines

provide power source for engines

What is the primary purpose of the APU feed pump in an aircraft?

To transfer remaining fuel from low points in the tanks to maximize fuel usage

To transfer fuel from the wings to the center tank

To cool the fuel before it reaches the engines

To supply fuel to the main engines during takeoff

Which of the following is true about the fuel transfer lines that move fuel from outer to inner tanks?

They use jet (ejector) pumps that rely on motive flow rather than electrical power

They rely on electrical pumps to transfer fuel

The pressure range is between 20-30 PSI

They require high pressure to maintain fuel movement

Where are the main fuel supply lines (engine feed system) located in the Airbus A350?

From the fuel tanks in the wings to the engines on the wings

Between the center fuselage and the tail

From the fuselage to the horizontal stabilizer

Between the cargo holds and the cockpit

Which of the following is true regarding the high-pressure fuel lines in the engine supply and injection system?

The high-pressure fuel lines use rigid stainless steel tubing

The pressure range is between 1000-2000 psi

The high-pressure fuel pumps are driven by the aircraft's APU

Pressure is generated by engine-driven low-pressure fuel pumps

Why do we need to lower the pressure inside the fuel lines?

To prolong the usage of the fuel lines

To prevent fuel leaks caused by overpressure

Why is the figure above important in fuel system?

To filter contaminants from fuel

It can enhance the fuel efficiency

It can increase the fuel pressure

What would happen to the aircraft if it does not have a fuel filter?

Contaminants could enter the fuel system thus leading to engine damage or failure

The aircraft would consume less fuel and increase efficiency

The engine would run smoother due to unrestricted fuel flow

Why do aircraft need to have a fuel jettison function?

To quickly reduce weight for a safe landing in emergency situations

To increase fuel efficiency during flight

To improve engine performance during long flight

To balance fuel distribution between tanks automatically

Where are the refuel/defuel lines located?

From the refueling ports to the fuel tanks

Between outer wing tanks and inner wing tanks

From inner wing tanks to the engines

From the lowest points of tanks

A350

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A350

52 questions

Transfer Pumps is a type of?

Surge Protection Valves’ purpose is ....

What is the approximate total fuel volume capacity of the aircraft?

What is the specific density of fuel under normal conditions?

Where is the Engine Feed Pump is located?

Why does each wing tank contain a collector cell?

Which has the purpose of remove excess fuel from vent surge tanks and return it to the main tanks?

Which valve allows fuel to flow in only one direction, preventing backflow?

What is the primary purpose of a fuel shutoƯ valve?

Which valve prevents excessive pressure buildup inside fuel tanks?

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