Question "The energy sources must be shut down"; for a pneumatic valve, what would this mean? Oclosed Open Neutral Passing Flag Reset Next

## Step 1<br />The problem is asking us to interpret the phrase "The energy sources must be shut down" in the context of a pneumatic valve. Pneumatic valves are a type of valve that uses compressed air to control the flow of fluid.<br />## Step 2<br />The phrase "The energy sources must be shut down" implies that the energy source, which is compressed air in this case, must be stopped. This means that the valve must be in a state where it does not allow any flow of compressed air.<br />## Step 3<br />In the context of a pneumatic valve, this state is referred to as the "closed" position. In this position, the valve prevents the flow of compressed air, effectively shutting down the energy source.