A circular gravity aqueduct is not generally preferred to because of
The requirement of water per capita per day, is
If n is porosity, y is specific yield and r is specific retention of any soil, the relationship which holds good, is
Pick up the incorrect statement from the following :
An aquiclude is
The external load per unit length of
The requirement of water per capita per day, is
Total flow in stream is known
Specific yield of a well is
A water channel supported above the ground over trestles, is generally called
Aqueducts are generally designed
'Shrouding' is essentially provided in
Percussion drilling is unsuitable in
Standard unit of turbidity of water is in one litre of distilled water, one milligram of finely divided
Water is supplied from the source to the treatment plant under gravity in
Pick up the incorrect statement from the following :
The total domestic consumption in a city water supply, is assumed
Disinfection of drinking water is done to remove
Normal values of overflow rate for plain sedimentation tanks in litres/hr/m2, generally range between
The ensure proper growth of children's teeth, the quantity of flouride used in water mains, is
Disinfection of water with ozone is not good because
The ratio of total capacity and dead storage is kept
The requirement of water per capita per day, is
One degree of hardness of water means a content of salts of
Chemical coagulation of drinking water, is done
An earth formation which, although porous and capable of absoring water does not provide an appreciable supply to wells, is known as
The force which develops in a pressure conduit supported on trestles, is
One degree of hardness of water means a content of salts of
Increase in population of a rapidly growing city, may be estimated by
The force which develops in a pressure conduit supported on trestles, is