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Pick out the wrong statement. | |
A. | Caustic embrittlement of boiler's metallic parts is caused by high concentration of caustic soda in boiler feed water. [Wrong Answer] |
B. | Cooling and freezing of water kills the bacteria present in it. [Correct Answer] |
C. | With increasing boiler operating pressure of steam, the maximum allowable concentration of silica in feed water goes on decreasing. [Wrong Answer] |
D. | Dissolved oxygen content in high pressure boiler feed water should be nil. [Wrong Answer] |