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Question Answer

► MCQ Exam ON : Water Treatment

Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with


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Important MCQ on Related Subject

📌     Permanent hardness of water may be removed by the addition of
📌     Secondary treatment uses __________ to consume wastes.
📌     Lagoons may be characterized as
📌     The methods used for biological treatment are
📌     The water being used in dairy industry should contain not more than
📌     Coliform bacteria in water is an indication of the presence of
📌     BOD stands for
📌     The maximum permissible limit (BIS) of turbidity in drinking water is
📌     Temporary hardness of water may be removed by adding
📌     Which of the following substances are commonly used in a filter?
📌     Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with
📌     Sanitizer used specifically for vitreous enamel are
📌     According to BIS the maximum permissible limit of dissolved solids in drinking water is
📌     Biological oxidation processes usually referred as biological treatment, are the most common form of
📌     Which of the following chemical is sometime added in the process of coagulation and flocculation?
📌     Application of quaternary ammonium compounds as sanitizing agents tends to
📌     Zeolite softening process removes
📌     Both temporary and permanent hardness of water can be removed by
📌     Which of the following physical method is used as germicidal in modern time for the treatment of drinking water?
📌     The maximum desirable limit (BIS) of total hardness (as CaCo3) in drinking water is
📌     The chemical oxygen demand (COD)measures the
📌     Zeolite softening process removes both temporary and permanent hardness of water. In this process the calcium and magnesium present in water are precipitated as
📌     Sanitizers used for rubber made equipments are
📌     Conventional tertiary treatment is
📌     Hardness of water does not
📌     Acid used mostly for removal of milk stone is
📌     The activated sludge process consists of returning a portion of the clarifier
📌     Permanent hardness of water is caused by the presence of
📌     Sedimentation is a physical process used in wastewater treatment to
📌     Inhibitors are used along with sanitizer to

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