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.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the purpose of the pressure regulator in a hydraulic system?

To maintain system operating pressure within a predetermined range and to unload the pump
To increase the hydraulic fluid pressure as needed
To decrease the system's operating temperature
To clean the hydraulic fluid

The correct answer is: To maintain system operating pressure within a predetermined range and to unload the pump

The pressure regulator in a hydraulic system serves the purpose of maintaining the system operating pressure within a predetermined range and unloading the pump when necessary. This is crucial for the proper functioning of the hydraulic system as it ensures that the pressure doesn't exceed safe limits, preventing damage to system components and maintaining consistent operation. By unloading the pump when the pressure reaches the set limit, the pressure regulator helps in regulating the flow of hydraulic fluid and prevents over pressurization. This is why option A is the correct answer. Options B, C, and D are incorrect: - Option B is incorrect because the pressure regulator does not increase the hydraulic fluid pressure as needed but rather maintains it within a predetermined range. - Option C is incorrect because the pressure regulator is not designed to decrease the system's operating temperature. - Option D is incorrect because the pressure regulator's function is not to clean the hydraulic fluid but to regulate and maintain the system operating pressure.