Under normal operation, the 2000 psi isolation valve remains in what state?

Under normal operation, the 2000 psi isolation valve remains in what state?

• A. OPEN
• B. CLOSED
• C. PARTIALLY OPEN
• D. FAULT

Answer: (A)

The main idea is that the 2000 psi isolation valve is kept open during normal operation so hydraulic fluid can flow freely through the high-pressure circuit. This valve serves to isolate the circuit when maintenance or fault isolation is needed, but in normal flight it must not block flow. Keeping it open ensures the actuators and controls receive the required hydraulic power. If it were closed, you’d cut off pressure to the system and controls wouldn’t function. A partially open position would introduce flow restrictions and pressure instability, and a fault state would indicate a maladjusted valve or failure. So, under normal operation, it remains open.

The main idea is that the 2000 psi isolation valve is kept open during normal operation so hydraulic fluid can flow freely through the high-pressure circuit. This valve serves to isolate the circuit when maintenance or fault isolation is needed, but in normal flight it must not block flow. Keeping it open ensures the actuators and controls receive the required hydraulic power. If it were closed, you’d cut off pressure to the system and controls wouldn’t function. A partially open position would introduce flow restrictions and pressure instability, and a fault state would indicate a maladjusted valve or failure. So, under normal operation, it remains open.