Q. In which of the following filter, two layers filtering media is provided for filtration?

View solution

Q. What is the size of sand used in a dual media filter?

View solution

Q. The coarser layer used in a dual media filter is of __________

View solution

Q. The thickness of Anthracite used in dual media filter is __________

View solution

Q. How the performance of the rapid sand filter can be improved?

View solution

Q. The size of Anthracite used in dual media filter is __________

View solution

Q. In mixed media filter, the filtration is done from ______

View solution

Q. What is the ratio in which coal, sand and garnet are present in the mixed media filter?

View solution

Q. Which of the following order is correct regarding the specific gravity of the materials used in the mixed media filter?

View solution

Q. Which of the following order is correct regarding the thickness of layer of the materials used in the mixed media filter?

View solution

Q. Which of the following is the best filter in terms of rate of filtration?

View solution

Q. In which type of filter, water flows in upward direction?

View solution

Q. The up flow filter is used in domestic water supply.

View solution

Q. In which type of filter, the filtration is done in two opposite directions at the same time?

View solution

Q. Which material is provided for the down-flow bed in dual media bi-flow filter?

View solution

Q. The rate of filtration of a Micro-Strainer is __________ litres / hour.

View solution

Q. Which material is provided for the up flow bed in dual media bi-flow filter?

View solution

Q. Which device is used for screening stored water which do not contain microscopic sized particles?

View solution

Q. What is the diameter of drum of a Micro-Strainer?

View solution

Q. What is the thickness of a layer of a diatomite filter?

View solution