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Chemical Engineering
Chemical Environmental Engineering
Q
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___________________?
AB. Cooling and freezing of water kills the bacteria present in it
BC. With increasing boiler operating pressure of steam, the maximum allowable concentration of
CSilIca in feed water goes on decreasing
DD. Dissolved oxygen content in high pressure boiler feed water should be nil
Correct Answer:
B. C. With increasing boiler operating pressure of steam, the maximum allowable concentration of