USCG USCG Steam
Set 9 • Question #478 of 496
Launch Interactive Practice Room Vent condensers are usually an integral part of deaerating feed heaters and serve to condense __________.
A
only steam vented from high pressure steam traps
B
steam vented from high pressure steam glands
C
the steam vapor entrained with the non-condensable gases
✓ Correct Answer
D
the gases liberated by the deaeration process
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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