Q. In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is

View solution

Q. In septic tanks,

View solution

Q. The sewer pipe which carries sewage from a building for immediate disposal is

View solution

Q. The algae dies out in the zone of

View solution

Q. The recommended detention period for grit chambers is

View solution

Q. Pick up the correct statement from the following :

View solution

Q. Pick up the correct statement from the following :

View solution

Q. The liquid wastes from kitchens, bath rooms and wash basins, is not called

View solution

Q. The presence of free ammonia in sewage, is detected by

View solution

Q. The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known

View solution

Q. The standard B.O.D. of water is taken for

View solution

Q. The digested sludge from septic tanks, is removed after a maximum period of

View solution

Q. For providing an Indian type W.C., the R.C.C. slabs in the toilet portion

View solution

Q. The gradient of sewers depends upon

View solution

Q. The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is

View solution

Q. The drop man holes are generally provided in sewers for

View solution

Q. For large sewers, maximum distance between manholes may be

View solution

Q. The first stage of neutral process of sludge digestion, is

View solution

Q. Lead acetate test in sewer manhole is done to test the presence of

View solution

Q. Dried sewage after treatment is used as

View solution