FAA AMT Airframe Practice Exam 2026 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

Question: 1 / 1030

What is the pressure source for power brakes?

The main hydraulic system

Power brakes require a boost in pressure to function properly. The pressure source for this is the main hydraulic system, making option A the correct choice. Option B is incorrect because the secondary hydraulic system is not typically strong enough to provide sufficient pressure for power brakes. Option C is incorrect because manual pumps require physical effort and are not typically used for power brakes. Option D is incorrect because power brakes do not use electric motors as a source of pressure.

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The secondary hydraulic system

A manual pump

Electric motors

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