The loss of head during cleaning operation of a rapid sand filter is __________ Options: A . &nbsp15-30cm B . &nbsp1-5cm C . &nbsp10-20cm D . &nbsp10-25cm

The loss of head during cleaning operation of a rapid sand filter is _________

Question

The loss of head during cleaning operation of a rapid sand filter is __________

Options:

A . 15-30cm

B . 1-5cm

C . 10-20cm

D . 10-25cm

Answer: Option A
Answer: (a).15-30cm

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Question 1. Which device is used to supply air for the agitation of sand grains during washing of filters?....

Question 2. In which type of under drainage system of rapid sand filter, laterals are provided with strainers?....

Question 3. The thickness of the suspended matter on top of the sand bed is __________....

Question 4. The cracking of bed is more prominent __________....

Question 5. ______ are formed in filters due to insufficient washing of sand grains.....

Question 6. When the loss of the head exceeds the static head, the head becomes _____....

Question 7. Which type of problem is caused in filter due to the accumulation of solids on the top surface of filter media?....

Question 8. What is the permissible negative head loss of a rapid sand filter?....

Question 9. _______ type of trouble in filter is caused by the released of dissolved air and gases from water.....

Question 10. In which type of filtration problem, layers of gravel are displaced?....

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