Which of the following should not be a composition of boiler-feed water?
A) Hardness should be below 0.2ppm
B) Its caustic alkalinity should lie between 0.15 to 0.45 ppm
C) Its soda alkalinity should be 0.45-1 ppm
D) Its caustic alkalinity should be 1.5-2 ppm
Correct Answer:
Verified
Q15: The color of the artificial zeolite permutit
Q16: Natural zeolite is mainly processed from _
A)White
Q17: The color of the natural zeolite is
Q18: The chemical formula of Permutit is _
A)SiOAl2O3Na2O
B)SiO2Al2O3Na2O
C)SiO2Al2O3NaO
D)SiO3Al2O3Na2O
Q19: Permutit has an exchange value of _
Q20: The thickness of the layers of filter
Q21: Which of the following is a disadvantage
Q22: Water is mainly used in boilers for
Q24: Which of the following is not a
Q25: If the precipitate formed is soft, loose
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