USCG USCG Steam
Set 8 • Question #453 of 496
Launch Interactive Practice Room The DC heater automatic level dump valve is used to __________.
A
divert the flow of condensate from the first stage heater to the vent condenser
B
maintain a proper condensate level in the condenser hotwell
C
recirculate condensate to the atmospheric drain tank
D
drain excess feedwater to the distilled water tank
✓ Correct Answer
USCG NMC Regulatory Explanation
The Deaerating Feed Tank (DFT / DC Heater) scrubs dissolved oxygen and non-condensable gases from boiler feedwater using direct contact steam heating, preventing localized oxygen pitting corrosion in economizers and steam drums.
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