A. Cold lime process
B. Coagulation
C. Hot-lime soda process
D. Sequestration
Related Mcqs:
- Which of the following impurities in feed water for high pressure boiler is the most detrimental ?
A. Silica
B. Dissolved oxygen
C. Suspended salt
D. Dissolved salt - The most widely used coagulant for removing suspended impurities from water is__________________?
A. Bleaching powder
B. Chlorine
C. Calcium sulphate
D. Alum - Most widely and commonly used coagulant for the removal of suspended impurities in water is __________________?
A. Bleaching powder
B. Slaked lime
C. Alum
D. Copper sulphate - The main use of activated carbon in water treatment is to control ___________________?
A. Bacterial growth
B. Taste and odour
C. Turbidity
D. None of these - Lime and soda ash are added to water to remove ___________________?
A. Bicarbonates & sulphates of calcium and magnesium
B. Undesirable taste and odour
C. Bacteria
D. Its corrosiveness - Separation of fresh water from sea water can be done by the _______________ operation ?
A. Osmosis
B. Reverse osmosis
C. Absorption
D. Adsorption - Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of_____________________?
A. Calcium sulphate
B. Sodium chloride
C. Sodium sulphate
D. Magnesium chloride - Glycerine is recovered from lye by ___________________?
A. Evaporation followed by vacuum distillation
B. Liquid extraction technique
C. Extractive distillation technique
D. None of these - Titanium dioxide is a/an ___________________ colour pigment?
A. White
B. Black
C. Yellow
D. Blue - A unit operation is exemplified by the process of ___________________?
A. Reduction
B. Desorption
C. Nitration
D. Combustion
