In which type of under drainage system of rapid sand filter, laterals are provided with strainers? Options: A . &nbspPerforated pipe system B . &nbspPipe and strainer system C . &nbspWheeler system D . &nbspWagner system

In which type of under drainage system of rapid sand filter, laterals are provid

Question

In which type of under drainage system of rapid sand filter, laterals are provided with strainers?

Options:

A . Perforated pipe system

B . Pipe and strainer system

C . Wheeler system

D . Wagner system

Answer: Option B
Answer: (b).Pipe and strainer system

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Question 1. The thickness of the suspended matter on top of the sand bed is __________....

Question 2. The cracking of bed is more prominent __________....

Question 3. ______ are formed in filters due to insufficient washing of sand grains.....

Question 4. When the loss of the head exceeds the static head, the head becomes _____....

Question 5. Which type of problem is caused in filter due to the accumulation of solids on the top surface of filter media?....

Question 6. What is the permissible negative head loss of a rapid sand filter?....

Question 7. _______ type of trouble in filter is caused by the released of dissolved air and gases from water.....

Question 8. In which type of filtration problem, layers of gravel are displaced?....

Question 9. The tendency of jetting can be minimized by __________....

Question 10. How the problem of sand incrustation can be minimized?....

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