FAA AMT Airframe Test 2026 – 400 Free Practice Questions to Pass the Exam

Adjusting units with the highest pressure settings first is the best sequence to follow when adjusting several pressure regulating valves in a hydraulic system. This is because starting with the highest pressure settings ensures that the valves with the largest impact on the overall system will be properly adjusted before moving on to those with lower pressure settings. If units with lower pressure settings were adjusted first, it could potentially cause issues with the higher pressure units and make it difficult to achieve proper system pressure. Additionally, not having a specific sequence (choice A) or starting with moderate pressure settings (choice C) may lead to a more time-consuming and inefficient adjustment process. Therefore, adjusting units with the highest pressure settings first is the most logical and effective approach.