In the A320 lavatories, where are the water shut off valves located?

In the A320 lavatories, where are the water shut off valves located?

• A. Under the sink behind the access door below the water heater.
• B. Behind the access panel located on either side of the toilet.
• C. Behind the access panel located directly at the front of the toilet shroud.
• D. All of the above.

Answer: (D)

The concept being tested is that the lavatory plumbing is designed with multiple shut-off points so you can isolate the water supply to different components without affecting the entire system. In the A320 lavatory, there are shut-off valves under the sink behind the access door below the water heater, behind the access panels on either side of the toilet, and behind the access panel at the front of the toilet shroud. Having valves in these various locations provides flexibility for maintenance or in case of a leak, since you can shut off the hot water supply, the toilet supply, or the sink supply as needed. Because valves exist in all of these places, the correct understanding is that shut-off valves are located in each of these locations.

The concept being tested is that the lavatory plumbing is designed with multiple shut-off points so you can isolate the water supply to different components without affecting the entire system. In the A320 lavatory, there are shut-off valves under the sink behind the access door below the water heater, behind the access panels on either side of the toilet, and behind the access panel at the front of the toilet shroud. Having valves in these various locations provides flexibility for maintenance or in case of a leak, since you can shut off the hot water supply, the toilet supply, or the sink supply as needed. Because valves exist in all of these places, the correct understanding is that shut-off valves are located in each of these locations.