Q. Centrifugal pumps have a greater speed of rotation when compared to that of positive displacement blower.

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Q. Dimensionless pressure rise is not dependent on which of the following?

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Q. What is the maximum discharge pressure of a twin lobe blower?

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Q. How is the static pressure drop in the water column related to the air flow rate?

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Q. Which of these is not a characteristic of variable speed drive?

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Q. The surface water quality is affected by _______ and infiltration from rainfall.

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Q. Function of the intended uses of water can achieve the desired water quality.

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Q. There is a direct relation between water use and its required quality.

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Q. _________ are constructed for water supply, electricity generation, recreation, irrigation and others.

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Q. What is the next step after water abstraction in wastewater treatment?

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Q. Which of the following requires aesthetically pleasant water?

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Q. The addition of substances or energy forms that directly or indirectly alter the nature of the water body is called?

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Q. What is the type of pollution where the pollutants reach the water body in points called?

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Q. What percentage of solids does wastewater contain?

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Q. What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

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Q. At higher temperatures, the amount of Dissolved Oxygen decreases.

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Q. The optimum temperature for bacterial activity is in what range?

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Q. Turbidity in water is caused by which of these following?

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Q. What is the relationship between turbidity and TSS For a settled secondary effluent?

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Q. Which characteristic of water does Calcium contribute to?

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