The bacterias which require free oxygen for their survival, are called

High pH value of water does not produce

The type of pipe commonly used in water supply distribution schemes, is

The depth of the water table at a place ism 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 fire demand for a city ofpopulation, according to Godrich formula, is

To detect the turbidity of the order of 0 toP.P.M. the instrument used is

Most commonly used section in grade aqueducts, is

In pumping stations, the type of joint generally used, is

High pH value of water does not produce

Sluice valves are fitted in a distribution system

Maximum threshold number permitted for indicating the odour of public water supplies, is

To detect the turbidity of the order of 0 toP.P.M. the instrument used is

Distribution of wash water is provided in

Critical time for developing a water hammer, is the time required for

The efficiency of sedimentation tank does not depend upon

Standard process of chlorination of water, is done by

The permissible pH value for public water supplies may range between

The detention period for plain sedimentation water tanks, is usually

litres of water per person per day, is provided in

The valves provided at low points of pipes to drain off water quickly under gravity, are called

The population of a city inisThe average per decade of the previous records of population isand average percentage per decade is 20%. The population of the city based on geometrical increase method, in the yearwill be

The rate of silting in a reservoir

When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

If the chosen diameter of a pipe, is less than the economical diameter

The lowest outlet sluice in a dam is provided

The strainer type tube well, is unsuitable for

The maximum permitted loss of head in a rapid sand filter, is

Turbidity of water may be caused due to

Pick up the incorrect statement from the following :

Estimates of a water supply project depends upon the rate of water supply per capita consumption and probable population estimated at the end of the design period of