Open‑Book NATOPS Practice Exam 2025 – Your All-in-One Guide to Master NATOPS Certification!

Question: 1 / 400

To operate the ramp in flight with the landing gear retracted, which valve needs to be opened?

Landing Gear Valve

Utility Isolation Valve

The correct choice for operating the ramp in flight with the landing gear retracted involves the Utility Isolation Valve. This valve is responsible for controlling the hydraulic pressure supplied to various systems, including the ramp mechanism. When the landing gear is retracted, the ramp can only function if the Utility Isolation Valve is opened, allowing hydraulic fluid to flow to the ramp control system.

In contrast, the Landing Gear Valve specifically manages hydraulic pressure related to the landing gear system and is not directly involved in operating the ramp. The Ramp Control Valve directs hydraulic fluid to the actual ramp mechanism, but it relies on the Utility Isolation Valve being opened to provide the necessary pressure. The Emergency Release Valve is intended for safety purposes, allowing for manual control in case of a system failure, rather than routine operation of the ramp while in flight. Thus, opening the Utility Isolation Valve is essential for the correct operation of the ramp under the specified conditions.

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Ramp Control Valve

Emergency Release Valve

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