46201. A water channel supported above the ground over trestles, is generally called
46202. If d is the diameter of the pipe, p is the total internal pressure, f is the permissible tensile stress and n is the effective of the joint, the thickness t of metal pipe, is
46203. One degree of hardness of water means a content of salts of
46204. Mostly used coagulant, is
46205. If G is the specific gravity of particles of diameter d, the velocity of settlement V in still water at T°C, according to Stoke's law, is
46206. The most commonly used chemical for dechlorination of water, is
46207. The prescribed hardness limit of potable water ranges between
46208. For centrifugal pumps
46209. The cast iron pipes for water supply system are used for
46210. For plain chlorination of water, the quantity of chlorine used, is
46211. For estimating the run off of catchments, the mean value of the constant 'K' in the Khosla's formula Qy = Py - K (1.8 Ty + 32) is
46212. Service connections to consumers houses, are generally provided with
46213. Sluice valves are fitted in a distribution system
46214. The maximum permitted loss of head in a rapid sand filter, is
46215. Mud balls may be removed by
46216. For maximum alkalinity of water, pH value should be
46217. The fire demand for a city of 50, 000 population, according to Godrich formula, is
46218. The efficiency of sedimentation tank does not depend upon
46219. When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied
46220. Most commonly used section in grade aqueducts, is
46221. The lowest outlet sluice in a dam is provided
46222. The four major water supply distribution systems, are
46223. Most important source of water for public water supply, is from
46224. In pumping stations, the type of joint generally used, is
46225. The permissible pH value for public water supplies may range between
46226. The strainer type tube well, is unsuitable for
46227. Specific capacity or yield of wells, is generally expressed, as
46228. The depth of the water table at a place is 45 m below the general ground level. To lift water from a deep tube well in such a locality, the type of pump to be installed is
46229. Critical time for developing a water hammer, is the time required for
46230. According to Buston's formula, fire demand in litres per minute for a population of P thousands, is
46231. The ratio of maximum hourly consumption and average hourly consumption of the maximum day, is
46232. Cast iron pipes are generally preferred to, because
46233. The fire demand for ascertaining the empirical formula known as
46234. To detect the turbidity of the order of 0 to 1000 P.P.M. the instrument used is
46235. Standard process of chlorination of water, is done by
46236. If the chosen diameter of a pipe, is less than the economical diameter
46237. 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
46238. In the equation of a logistic curve of population growth, the constant m is
46239. High pH value of water does not produce
46240. Distribution of wash water is provided in
46241. The valves provided at low points of pipes to drain off water quickly under gravity, are called
46242. The bacterias which require free oxygen for their survival, are called
46243. Maximum threshold number permitted for indicating the odour of public water supplies, is
46244. 45 litres of water per person per day, is provided in
46245. Turbidity of water may be caused due to
46246. The maximum pressure to which cast iron pipes may be subjected to, is
46247. The type of pipe commonly used in water supply distribution schemes, is
46248. The valve shown in the below figure, is generally known as
46249. The population of a city in 2000 is 50, 000. The average per decade of the previous records of population is 5000 and average percentage per decade is 20%. The population of the city based on geometrical increase method, in the year 2020 will be
46250. Before constructing a dam, the factor to be considered for controlling sedimentation, is
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