The most commonly used disinfectant for drinking water throughout the world is

Related MCQs

• The maximum permissible hardness in water for drinking purposes should not exceed 100 ppm.
• Bio-chemical oxygen demand (B.O.D.) of safe drinking water must be
• In orthotolodine test, safe residual for drinking water is indicated by
• The most commonly used chemical for dechlorination of water is
• The most important source of water for public water supply is
• The pipe joint commonly used in pumping stations is
• The presence of calcium and magnesium bi-carbonates in water causes hardness in the water.
• The water obtained from a lake is known as surface water.
• In designing a water works for a city to meet the water demand for public use, a provision of about
• The sanitation system in which a small portion of storm water is allowed to enter in the sanitary sewage sewers and the remaining storm water flows in separate set of sewers, is known as