Pick out the wrong statement.

Caustic embrittlement of boiler's metallic parts is caused by high concentration of caustic soda in boiler feed water

Cooling and freezing of water kills the bacteria present in it

Answer

With increasing boiler operating pressure of steam, the maximum allowable concentration of silica in feed water goes on decreasing

Dissolved oxygen content in high pressure boiler feed water should be nil

Answer: Option B

Answer: Option B

No explanation is given for this question Let's Discuss on Board