During a sanitary inspection of a rapid sand filtration plant, slowing of the filtration rate was observed owing to loss of head. Which method will you suggest to give head to water in such a situation?

Related MCQs

• In which one of the following cities was the First International Sanitary Conference held in the year 1851?
• You were required to chlorinate well water; you added required amount of bleaching powder solution to the water and allowed an overnight contact tim What is your recommendation regarding consumption of this water for drinking.
• Your advice is sought to maintain sustainability of a health programm Which is the best and essential feature that you suggest to make the programme sustainable?
• A worker who had been in the battery manufacturing unit for the last 20 years, reported to you with complaints of loss of appetite and abdominal colic of 2 weeks duration. You will prefer to investigate him for:
• A dental surgeon appointed in rural health centre reports an increased incidence of dental carries in the children of that are the relevant preventive measure that he should suggest to the health authorities is:
• Which month is observed as National Anti-malaria month?
• A research team conducted a nationwide survey of Industries and factories. While arranging the data they observed that the most common occupational cancer was:
• A case of acute flaccid paralysis must be observed for how many days for residual paralysis after onset of paralysis?
• Population growth rate is rated to be explosive if the annual growth rate exceeds
• Different agents are used for chlorination of water on large scale. If after chlorination taste of water is not much altered; level of residual chlorine is more stable and persistent. The likely agent to be used for chlorination was: