The Value of Specific Gravity for Garnet Sand Is ____

Q11: Permutit has an exchange value of _

Q12: The value of uniformity coefficient for uniformly

Q13: The effective size of sand of the

Q14: The thickness of the layers of filter

Q15: Which of the following is not commonly

Q17: The color of the natural zeolite is

Q18: Water is mainly used in boilers for

Q19: Zeolites are complex compound of _<br>A)Aluminium and

Q20: Which of the following is a disadvantage

Q21: Which of the following is correct regarding