91. The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is
92. The suitable method of forecasting population for a young and rapidly increasing city is
93. Average rate of water consumption per head per day as per Indian Standard is
94. The suitable layout of distribution system for a city with roads of rectangular pattern is
95. The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called
96. The effect of increasing diameter of sewer on the self cleansing velocity is
97. For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be
98. The relative stability of a sewage sample, whose dissolved oxygen is same as the total oxygen required to satisfy BOD, is
99. The alum, when added as a coagulant in water
100. Standard BOD is measured at
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