32001. The main process to purify water by filtration, is
32002. . Mary and Devi......... to school together:
32003. Surface water is obtained from
32004. Hardness of water is caused due to
32005. Flow through period, in sedimentation tanks, is
32006. Normal values of overflow rate for plain sedimentation tank, is
32007. Who was the first vice president of America?
32008. The force which develops in a pressure conduit supported on trestles, is
32009. After cleaning a slow sand filter, the filtered water is not used for
32010. A pressure conduit laid under ground, may not be subjected to
32011. The period of cleaning of a slow sand filter, is usually
32012. At the socket and spigot joint,
32013. Gravity conduits for carrying water from the source are
32014. Continuous flow of water can be expected from
32015. The maximum hourly consumption, is generally taken as
32016. A city supply includes
32017. During treatment of water, sedimentation is done
32018. E. Coli bacterias die in water having pH greater than
32019. Check valves are installed
32020. Fear of pain is?
32021. If intensity of rainfall in cm per hour is I, percentage coefficient of run-off is P, area of catchment in square kilometres is A, the total run-off Q, is given by
32022. Hard water contains
32023. The main disadvantage of hard water, is
32024. An area is declared drought affected if its mean rainfall is less than
32025. The best quality of filter material is obtained from quartzite if it does not loose weight when placed in hydro-chloric acid for 24 hours, more than
32026. If discharge of a pump is 0.16 cumecs, the economic diameter of pipe, is
32027. Hard water for public water supply is discarded because
32028. Pick up the correct statement from the following regarding radial flow centrifugal pumps :
32029. Quality of water is said to be good if it is
32030. . The word 'Pensive approximately means:
32031. The main draw-back of centrifugal pump, is
32032. The water level in an open well was depressed by pumping 2.5 m and recuperated 2.87 m in 3 hours and 50 minutes. The yield of the well per minute is
32033. Rapid gravity filter can only remove turbidity of water upto
32034. . A span of ten years:
32035. The best process of disinfection of public water supply, is by
32036. . The word 'insomnia' approximately means:
32037. A water channel supported above the ground over trestles, is generally called
32038. The central most space of tooth contains?
32039. One degree of hardness of water means a content of salts of
32040. Mostly used coagulant, is
32041. 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
32042. The most commonly used chemical for dechlorination of water, is
32043. The prescribed hardness limit of potable water ranges between
32044. For centrifugal pumps
32045. The cast iron pipes for water supply system are used for
32046. For plain chlorination of water, the quantity of chlorine used, is
32047. 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
32048. Service connections to consumers houses, are generally provided with
32049. Sluice valves are fitted in a distribution system