Water Supply Engineering Questions

• Sluice valves are fitted in a distribution system
• The lowest outlet sluice in a dam is provided
• Mud balls may be removed by
• Pick up the correct statement from the following :
• 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
• The bacterias which require free oxygen for their survival, are called
• 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
• The detention period for plain sedimentation water tanks, is usually
• 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
• 45 litres of water per person per day, is provided in
• For plain chlorination of water, the quantity of chlorine used, is
• The ratio of maximum hourly consumption and average hourly consumption of the maximum day, is
• The valves provided at low points of pipes to drain off water quickly under gravity, are called
• The efficiency of sedimentation tank does not depend upon
• In pumping stations, the type of joint generally used, is
• Distribution of wash water is provided in
• Service connections to consumers houses, are generally provided with
• Turbidity of water may be caused due to
• For centrifugal pumps
• The cast iron pipes for water supply system are used for