Water Supply Engineering Questions

• Asbestos pipes are joined by means of
• The dilution ratio at which the odour is hardly detectable is generally called threshold odour number and for public supplies it should not exceed
• Water may not contain much impurities if its source is
• While designing a water supply of an industrial township, industrial and commercial water demand of total supply, is assumed
• Abyssinian tube well is a special type of
• Air valves are generally provided in pressure pipes of water supply
• The maximum permissible colour for domestic supplies based on cobalt scale, is
• The flow of water gets retarded, in
• Growth of population can be conveniently represented by
• In a well planned city, the layout of distribution pipes generally adopted, is
• The pH value of water fit for drinking, is
• Bacterias which can survive with or without free oxygen, are known
• The joint used for joining the plain ends of cast iron pipes, is
• The gaseous form of chlorine gets converted into liquid form when subjected to a pressure of
• Pick up the correct statement from the following :
• Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains
• Grade aqueducts are not allowed to run
• Pick up the correct statement from the following :
• To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36, 00, 000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 Q, the water horse power of the pump is
• The efficiency of a pumping set, is generally assumed