Q. From the surface of reservoir, evaporation may be minimised by sprinkling

View solution

Q. Gravity conduits are generally in the form of

View solution

Q. The intake opening is generally covered by a screen to prevent entry of debris etc. and its level is kept

View solution

Q. In rapid sand filters the ratio of length and diameter of the lateral, should not be greater than

View solution

Q. The maximum permissible hardness for public supplies is

View solution

Q. Plain chlorination is used for water

View solution

Q. Underground water is obtained from

View solution

Q. Pick up the correct statement from the following :

View solution

Q. Pressure relief valves are provided in water mains

View solution

Q. Pick up the incorrect statement from the following :

View solution

Q. The percentage of chlorine in fresh bleaching powder is roughly

View solution

Q. Higher yield may be expected from

View solution

Q. Pick up the correct statement from the following :

View solution

Q. The valve fitted closely in a recess against an opening in a pipe, is generally

View solution

Q. For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula

View solution

Q. Raw water treated with only chlorine, is known as

View solution

Q. The level of underground water is called

View solution

Q. Per capita demand of water is calculated in litres

View solution

Q. P.V.C. pipes can withstand pressure bead of water upto

View solution

Q. The population of a city in 2000 is 50,000. The average increase in population over last 8 decades is 7500 and average incremental increase during 8 decades is 750. The population of the city based on incremental method, in the year 2020 will be

View solution