Which is the most widely used coagulant for the treatment of turbid water ?

Related Mcqs:

1. The amount of chemical coagulant added for treatment of polluted water ______________ with increase in temperature of the polluted water to be treated?

   A. Decreases B. Increases C. Remain constant D. May increase or decrease; depends on the chemical characteristics of polluted water...

2. The most commonly used chemical coagulant in water treatment is________________?

   A. Ferrous sulphate B. Alum C. Lime D. Hydrazine...

3. Which of the following is the most widely used disinfectant in water treatment ?

   A. Chlorine B. Irradiation of water by ultraviolet light C. Cation exchanger D. Coagulation...

4. During sewage treatment, the sewage is subjected to ______________ treatment in Imhoff tank?

   A. Filtration B. Digestion C. Sedimentation D. Both B. and C....

5. Pick out the one which is not a chemical coagulant ?

   A. Aluminium sulphate B. Ferrous sulphate C. Hydrated lime D. Chloramine...

6. In water treatment plant, zeolite process is used to remove the _____________ of water?

   A. Acidity B. Alkalinity C. Hardness D. Iron & zinc...

7. In water treatment, alum [Al2(SO4)3] is used for the process of __________________?

   A. Filtration B. Coagulation C. Sedimentation D. Disinfection...

8. Tri-sodium phosphate is used in boiler water treatment to reduce____________________?

   A. Turbidity B. Caustic embrittlement C. Suspended silica D. Dissolved oxygen...

9. The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant ?

   A. Chlorine B. Alkalis C. Benzene hexachloride D. Alkyl benzene sulphonate (ABS)...

10. 1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?

    A. 5 B. 10 C. 15 D. 20...