Q. To detect the turbidity of the order of 0 to 1000 P.P.M. the instrument used is

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Q. Standard process of chlorination of water, is done by

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Q. If the chosen diameter of a pipe, is less than the economical diameter

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Q. Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This entire process is generally known as

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Q. Most commonly used section in grade aqueducts, is

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Q. The lowest outlet sluice in a dam is provided

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Q. The four major water supply distribution systems, are

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Q. Most important source of water for public water supply, is from

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Q. The most commonly used chemical for dechlorination of water, is

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Q. The prescribed hardness limit of potable water ranges between

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Q. For centrifugal pumps

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Q. The cast iron pipes for water supply system are used for

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Q. For plain chlorination of water, the quantity of chlorine used, is

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Q. Pick up the wrong nominal internal diameter of cast iron (spun) pipes in mm from the following :

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Q. Hardness of water can be removed by boiling if it is due to

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Q. A well is considered to be good if it is sunk into

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Q. The nitrate concentration in domestic water supplies, is generally limited to

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Q. Sluice valves in main water supplies

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Q. The ratio of the maximum daily consumption to the average daily demand, is

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Q. The ratio of discharge and plan area of a continuous flow type settling tank, is known

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