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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Q. Pick up the correct statement from the following :

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Q. The maximum pressure to which a pipe is subjected to during its operation, is known

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Q. To control the growth of algae in reservoirs, the compound which is used, is

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Q. If the average daily demand of a city of 50, 000 population, is 20 m.l.d., the maximum daily demand is

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Q. Recuperation test is carried out to determine

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Q. Pick up the correct statement from the following :

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Q. Turbidity of water is expressed

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Q. Normal values of overflow rate for plain sedimentation tank using coagulants, is

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Q. The formula Q = P - K[1.8T + 32] in which Q is runoff, P is annual rain fall in cm, T is mean annual temperature in centigrades and K is a constant, is known

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Q. While selecting the location of an intake for collecting surface water, the factor considered, is

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Q. Aqueducts are generally designed

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Q. Gravity conduits

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Q. Carbonates in water produce

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Q. Hardness of water is caused by

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Q. A slow sand filter is cleaned if its filter head is higher than

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