🔍 Key Concepts

• Low-pressure drain system function and typical sources in a steam plant • Difference between high-pressure and low-pressure steam drains • Which components are more likely to have contaminated or low-pressure condensate that must be handled carefully

💭 Think About

• Think about which listed components normally operate at relatively low pressure compared to main steam conditions • Consider which component’s condensate is more likely to contain air or non‑condensable gases and therefore be routed through a low‑pressure drain system • Ask yourself which items are usually connected directly to main/high‑pressure steam and which are part of auxiliary/condensing systems

✅ Before You Answer

• Identify which options clearly involve high‑pressure steam and are therefore less likely to drain to a low‑pressure system • Determine which choice is most closely associated with the condenser and air removal system on a steam plant • Verify in your steam plant diagrams which equipment drains are specifically labeled as going to the LP drain cooler or LP drain tank