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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Q. The maximum pressure which the pipe can withstand without any leakage during hydrostatic pressure test, is called

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Q. Filtration of water is done to remove

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Q. Generally, first portion of a logistic curve for the population growth of a developing city, represents the growth of

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Q. Pick up the incorrect statement from the following. In take of water supply should

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Q. Reciprocating pumps

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Q. The temporary hardness of water can be removed by

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Q. Rapid gravity filters

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Q. If n is porosity, y is specific yield and r is specific retention of any soil, the relationship which holds good, is

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Q. Alum is a

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Q. In a reservoir the average volume of sediment deposition is 0.15 million cubic per year. If the dead storage and total capacity of the reservoir are 8 million cubic metres and 36 million cubic metres respectively,

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