Q. Dissolved carbon dioxide, can be removed from the supply main by

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Q. Slow sand filter is used if maximum turbidity of raw water is less than

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Q. The external load per unit length of

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Q. The total domestic consumption in a city water supply, is assumed

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Q. Permanent hardness of water can be removed by

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Q. Demand for public uses in a city, does not include water required for

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Q. The chloride content of treated water for public supplies should not exceed

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Q. An aquiclude is

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Q. Pick up the incorrect statement from the following :

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Q. Normal values of overflow rate for sedimentation tanks using coagulants in litres/hr/m² , generally range between

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Q. In a rapid sand filter, air binding is caused due to excessive

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Q. If average volume of sediment deposits is one-tenth million cubic metres per year in a reservoir of total capacity 10 million cubic metres, the dead storage will be filled up, in

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Q. A circular gravity aqueduct is not generally preferred to because of

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Q. Standard unit of turbidity of water is in one litre of distilled water, one milligram of finely divided

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Q. Ground water from artesian wells

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Q. Property of earth to allow water to pass through it, is known as

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Q. Pick up the incorrect statement from the following :

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Q. Water is supplied from the source to the treatment plant under gravity in

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Q. The most ideal disinfectant used for drinking water throughout the world, is

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Q. A centrifugal pump is required to be primed before starting if it is located

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