Asbestos pipes are joined by means of
Efficiency of removing bacterias from raw water by a slow sand filter, is
For plain chlorination of water, the quantity of chlorine used, is
Pick up the correct statement from the following :
The superimposed load transmitted to the pipe, is generally evaluated by Bousiness formula
The type of joint generally used in cast iron pipes, is
The flow of water gets retarded, in
For the prediction of future population of a city, the factor to be considered, is
Rapid sand filter
In a well planned city, the layout of distribution pipes generally adopted, is
Detention time for plain sedimentation tank usually ranges from
Abyssinian tube well is a special type of
De-chlorination is followed by
Water may contain
The intake opening is generally covered by a screen to prevent entry of debris etc. and its level is kept
Surcharge storage zone of a reservoir, is
Air inlet valve in water mains, is generally provided at
The maximum permissible chloride content in treated water of public water supplies should not exceed
An ideal sand for filters should be
Air valves are generally provided in pressure pipes of water supply
Chlorination of water does not remove
The bed slope in slow sand filters, is generally kept
The valve fitted closely in a recess against an opening in a pipe, is generally
Most important method for calculating discharge for planning a water supply project, is
A pressure conduit carrying water beneath a stream or a canal, is known as
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