Water Supply Engineering Questions

• While determining the yield of open wells by the pumping test
• The maximum hourly consumption, is generally taken as
• A water channel supported above the ground over trestles, is generally called
• 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
• The superimposed load transmitted to the pipe, is generally evaluated by Bousiness formula
• 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
• 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
• The main disadvantage of hard water, is
• Pick up the correct statement from the following :
• 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
• Pick up the correct statement from the following :
• If discharge of a pump is 0.16 cumecs, the economic diameter of pipe, is
• At the socket and spigot joint,
• Normal values of overflow rate for plain sedimentation tank, is
• Check valves are installed
• An area is declared drought affected if its mean rainfall is less than
• The standard B.O.D. at 20&Deg;C, is taken for the consumption in
• Quality of water is said to be good if it is
• Pick up the correct statement from the following :
• The main process to purify water by filtration, is