Q. In septic tanks, decomposition of organic bacteria, is done by

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Q. The stone ware sewers

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Q. 'Cowl' is provided at

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Q. The sewer which transports the sewage to the point of treatment, is called

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Q. Kjedahl nitrogen is a mixture of

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Q. Drop manholes at the junctions of sewer lines, are provided if

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Q. The most effective arrangement for diverting excess storm water into a natural drainage, is

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Q. Large diameter sewers subjected to external pressure alone, are reinforced

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Q. Pick up the correct statement from the following :

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Q. In sewage, the solids in mg per litre is

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Q. A nuisance is experienced in diluting water if dilution factor is less than

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Q. Traps

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Q. For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by

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Q. Pick up the correct statement from the following :

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Q. Pick up the correct statement from the following :

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Q. In sewers the velocity of flow should not be

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Q. If D is the diameter of a circular sewer and D' is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is

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Q. If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains

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Q. The design period of sewage treatment works in normally

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Q. The porosity of sediments in sewer pipes, is usually taken as

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