🔍 Key Concepts

• Deaerating feed water tank (direct contact) heater function in a steam plant and what maintains its normal water level • How feed water, condensate, and makeup water each enter or leave the deaerating tank during maneuvering • Which valves or systems would directly LOWER the level in the deaerating tank versus just changing pressure or temperature

💭 Think About

• Think about which option describes water being removed from the deaerating feed water tank, rather than just being rerouted within the same system. • During maneuvering, which control actions or malfunctions would cause a net loss of water from the deaerating tank instead of just moving water between condensate and drains? • Ask yourself: which choice represents a path where water that should stay in the deaerating tank is instead sent somewhere else and not immediately returned?

✅ Before You Answer

• For each choice, trace the direction of flow: Does this action send water out of the deaerating tank system? • Identify which device(s) are meant to dump or bypass water away from the normal feed system and into storage or drains. • Verify which options mainly affect steam pressure/temperature versus those that create a sustained loss of liquid level in the deaerating tank.