FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Prepare for the FAA AMT Airframe Exam with our comprehensive quiz. This resource offers multiple-choice questions designed to enhance your knowledge and understanding of aviation maintenance concepts.

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How is air generally removed from an aircraft hydraulic system?

  1. By applying external pressure

  2. By draining the system

  3. By heating the fluid

  4. By cycling the hydraulic components

The correct answer is: By cycling the hydraulic components

Air is generally removed from an aircraft hydraulic system by cycling the hydraulic components. When the hydraulic components are cycled, such as by moving the landing gear up and down or actuating the flight control surfaces, any trapped air bubbles are forced out of the system. This process helps ensure that the hydraulic system operates efficiently without any air pockets which could cause malfunctions or reduced system performance. Option A is incorrect because applying external pressure does not specifically target the removal of air from the hydraulic system. Option B is incorrect because draining the system would not necessarily remove the air bubbles trapped within the system. Option C is incorrect because heating the fluid does not address the issue of removing air from the hydraulic system effectively.