Q. For removal of manganese from water ________ mg of oxygen is required.

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Q. Removal of manganese from water takes place at a pH of ______

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Q. When small amounts of iron and manganese are present in water, they are removed by ____________

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Q. Removal of iron from water takes place at a pH of ______

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Q. The taste produced by a microorganism, can be controlled by ____________

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Q. Which of the following regarding ozonation is incorrect?

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Q. Which of the following is used for the control of taste and odor in water?

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Q. Granular activated carbon has a surface area of ____________

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Q. _______ is produced by passing a carbonaceous material through a heating mechanism at high temperature.

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Q. Which of the following is a carbonaceous material?

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Q. Which of the following is not a property of activated carbon?

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Q. The thickness of the activated carbon filter bed is ____________

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Q. When activated carbon is applied at more than one point, then it is called ________

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Q. Activated carbon in powder form is applied in the mixing basin.

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Q. Activated carbon can be applied to raw water ______ treatment process.

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Q. The dose of activated carbon in powdered form is controlled by ____________

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Q. What is the dose of copper sulfate required for the treatment of water?

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Q. There are protozoa present in the water. Its name is Dinobryen. What is the dose of copper sulfate required to kill it?

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Q. The fluoride concentration for prevention of dental caries is ____________

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Q. In which process, the fluoride content of water is raised?

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