Q. ________ removes oil and grease from the sewage.

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Q. Which device is used to prevent the clogging of sewer pipes?

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Q. Which of the following is called as depressed sewer?

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Q. The sewage in inverted siphon will flow under __________

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Q. The design self cleansing velocity of an inverted siphon is __________

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Q. The minimum diameter of an inverted siphon is __________

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Q. Which sewer appurtenance discharges the excess sewage flow to relief sewer?

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Q. Storm regulators are classified into how many types?

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Q. Which of the following is most effective in preventing the overloading of treatment plants?

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Q. Which of the following is called a sewage ejector pump?

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Q. Which of the following pump is used for the removal of grit?

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Q. The septic tank and pump chamber should be kept as deep as possible.

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Q. Which part of the pump chamber allows to easily disconnect from the pipeline?

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Q. Which device warns that the liquid is above the pump level?

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Q. Which of the following device prevents the back flow of wastewater?

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Q. Which component of the pumping chamber prevents ground water from entering the septic tank?

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Q. Which of the following represents the correct order in terms of the maximum efficiency of the pump?

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