What is fuel from the main system also used for?

What is fuel from the main system also used for?

• A. It is used as the working fluid for hydraulic and cooling tasks.
• B. It powers the anti-ice system.
• C. It is the primary fuel for the afterburner.
• D. It provides cabin pressurization.

Answer: (A)

Fuel from the main system also serves as the working fluid for hydraulic and cooling tasks. In this aircraft design, part of the fuel is circulated through the hydraulic system to power actuators and through heat exchangers to remove heat from avionics and other equipment. Using fuel in this way reduces the need for a separate hydraulic fluid and helps save weight, while still requiring careful management of fuel quality and temperature. Other systems like anti-ice, cabin pressurization, or the primary propulsion for the engine’s afterburner rely on their own dedicated media or processes, not the main-fuel working-fluid loop.

Fuel from the main system also serves as the working fluid for hydraulic and cooling tasks. In this aircraft design, part of the fuel is circulated through the hydraulic system to power actuators and through heat exchangers to remove heat from avionics and other equipment. Using fuel in this way reduces the need for a separate hydraulic fluid and helps save weight, while still requiring careful management of fuel quality and temperature. Other systems like anti-ice, cabin pressurization, or the primary propulsion for the engine’s afterburner rely on their own dedicated media or processes, not the main-fuel working-fluid loop.