FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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What functions do hydraulic system accumulators serve?

  1. Dampen pressure surges, supplement the pump, store power for limited operation

  2. Cool down the hydraulic fluid

  3. Increase the pump's pressure

  4. Filter the hydraulic fluid

The correct answer is: Dampen pressure surges, supplement the pump, store power for limited operation

Hydraulic system accumulators serve multiple functions in an aircraft. They help dampen pressure surges, supplement the hydraulic pump in case of high demand, and store hydraulic power for limited operation. These functions are vital for providing a steady and consistent hydraulic power supply to various aircraft systems when needed. The other options are incorrect because accumulators do not cool down the hydraulic fluid, increase the pump's pressure, or filter the hydraulic fluid.

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