USCG USCG Steam
Set 12 • Question #113 of 496
Launch Interactive Practice Room Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?
A
Sodium phosphate
✓ Correct Answer
B
Sodium hydroxide
C
Phenolphthalein
D
Caustic soda
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals', the verified engineering fact is: 'Sodium phosphate'.
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