USCG USCG Steam
Set 10 • Question #60 of 496
Launch Interactive Practice Room Condensate is pumped from the condenser to the DC heater instead of directly to the boiler because __________.
A
boiler feed pumps must operate with a negative suction head
B
suspended solids in the condensate must be eliminated
C
condensate should be deaerated before entering the boiler
✓ Correct Answer
D
condensate at condensing temperature is too hot and will cause thermal stress in the boiler
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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