One degree of hardness of water means a content of salts of

Related MCQs

• Hardness of water can be removed by boiling if it is due to
• Hardness of water is caused by
• Permanent hardness of water can be removed by
• The prescribed hardness limit of potable water ranges between
• By boiling water, hardness can be removed if it is due to
• 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
• Standard unit of turbidity of water is in one litre of distilled water, one milligram of finely divided
• Water content of sewage is about
• The maximum permissible hardness for public supplies is
• When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied