Out of the following impurities generally found in water, which one requires special consideration in case of very high pressure boilers?

Out of the following impurities generally found in water, which one re

1.	Out of the following impurities generally found in water, which one requires special consideration in case of very high pressure boilers?
A.	Hydrogen
B.	Ammonia
C.	Silica
D.	Dissolved salts
Answer» D. Dissolved salts

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Out of the following impurities generally found in water, which one requires special consideration in case of very high pressure boilers?

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