Plain chlorination is adopted for treating the water having turbidities less than 20 to 30 ppm.

Related MCQs

• The amount of chlorine used for plain chlorination of water is about
• When chlorine is added to raw water at more than one point, the process is termed as break point chlorination.
• The quantity of arsenic in water for domestic purposes should not be more than 0.05 ppm.
• In pre-chlorination, the raw water is treated with chlorine only.
• When turbidity of water exceeds about 45 ppm, coagulation
• The maximum permissible hardness in water for drinking purposes should not exceed 100 ppm.
• If the level of source of water is higher than that of the place of consumption, the system adopted for supplying water is
• Pre-chlorination
• The time of contact for chlorination should be at least
• When the chlorine is added beyond the break point, the process of treating the water is known as