What happens to System B reservoir fluid level if a leak occurs in the standby hydraulic system?

• A. The reservoir fluid level increases to 0% full
• B. The reservoir fluid level decreases and stabilizes at approximately 0% full
• C. The reservoir fluid level decreases and stabilizes at approximately 50% full
• D. The reservoir fluid level decreases and stabilizes at approximately 90% full

Answer: (B)

When a leak occurs in the standby hydraulic system, the fluid contained in System B's reservoir will start to escape through that leak, leading to a decrease in the fluid level. As fluid continues to escape, the reservoir will not be able to maintain its original level. This process continues until the fluid level stabilizes, ultimately reaching a point where it is approximately at 0% full.

This stabilization at a very low level occurs because, with the leak present, there isn’t enough fluid replenishing what is lost. If the reservoir was originally designed to not have an internal supply or redundancy to replenish itself in the event of a leak, it logically follows that the reservoir fluid level will drop until nearly all fluid has escaped through the leak.

Therefore, the outcome of a sustained leak in the system results in a fluid level that is effectively depleted, leading to a reservoir that stabilizes at around 0% full.