The prescribed hardness limit of potable water ranges between

Related MCQs

• One degree of hardness of water means a content of salts of
• 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
• By boiling water, hardness can be removed if it is due to
• The normal values of over flow rates for sedimentation tanks using coagulant, ranges between
• The normal value of over flow rates for plain primary sedimentation tanks, ranges between
• The normal values of over flow rates for secondary sedimentation tanks, ranges between
• 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
• The maximum permissible hardness for public supplies is