FAA AMT Airframe Practice Exam 2025 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

Question: 1 / 1030

What is the main purpose of a pressurized reservoir in a hydraulic system?

To increase the flow rate

To prevent hydraulic pump cavitation

A pressurized reservoir in a hydraulic system serves to prevent hydraulic pump cavitation. This is because when the hydraulic pump is running, it creates a low pressure area as it draws fluid from the reservoir. Without pressurization, this can cause bubbles to form in the fluid, reducing its effectiveness and potentially damaging the system. Therefore, options A, C, and D are incorrect as they do not address the main purpose of a pressurized reservoir, which is to prevent cavitation.

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To purify the hydraulic fluid

To cool the hydraulic fluid

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