The duration of contact of chlorine with water before it is served to the first consumer, should be at least

Related MCQs

• For plain chlorination of water, the quantity of chlorine used, is
• When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied
• The chlorine supply cylinders are generally kept at 38°C to 40°C to prevent
• The gaseous form of chlorine gets converted into liquid form when subjected to a pressure of
• If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is
• If V is total consumption of water in litres for a population of N individuals, per capita consumption or water allowance for the water supply Q, is given by
• m and n are monsoon duration factor and catchment factor respectively. If P is yearly rainfall in cm, runoff can be calculated by
• While designing a water supply of an industrial township, industrial and commercial water demand of total supply, is assumed
• Velocity of flow of water in plain sedimentation water tank, is normally kept
• The depth of the water table at a place is 45 m 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