🔍 Key Concepts

• Condensate and its role in the steam cycle • Function of a DC (dearating) heater in a steam plant • Why removing dissolved gases from feedwater is important for boiler safety

💭 Think About

• Think about what harmful substances might be present in condensate that are not visible but can still damage the boiler over time. • Consider the primary purpose of a DC heater in the feedwater system—what change does it make to the water before it reaches the boiler? • Ask yourself which choice best matches the main job of a deaerating component in a steam plant.

✅ Before You Answer

• Identify which option is directly related to removing oxygen and other dissolved gases from the feedwater. • Eliminate any options that describe conditions that are normally desired for boiler feed pumps (for example, good suction conditions). • Check which answer reflects a normal design purpose of a DC heater rather than an unlikely or incorrect problem with condensate temperature or solids.