A. Colloidal impurities
B. Dissolved oxygen
C. Turbidity
D. Chlorinous taste
Advertisement
Related Mcqs:
- Hydrazine (N2H4) is used mainly as a/an__________________?
- A. Explosive B. Rocket fuel C. Detergents additive D. None of these...
- Main use of hydrazine is___________________?
- A. As a rocket fuel B. In water treatment C. As a disinfectant D. As fire retardant...
- Hydrazine is largely used____________________?
- A. As a starting material for ‘hypo’ B. In photographic industry C. As rocket fuel D. In printing industry...
- 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...
- Pick out the false statement pertaining to water treatment ?
- A. Aeration of water is effective in CO2 removal B. The zeolite water softening process reduces the hardness of water by not more than 50% C. Sodium sulphate or sodium carbonate do not cause hardness in water D. Water with pH value less than 7, is acidic...
- Pick out the true statement pertaining to water treatment ?
- A. Slow sand filters can remove colour completely B. Activated carbon can be used for taste & odour control without subsequent filtration C. Application of activated carbon reduces the temporary hardness of water D. Normally, the turbidity is removed by adding a coagulant prior to sedimentation...
- Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove____________________?
- A. Colour B. Turbidity C. Bacteria D. All A , B. and C....
- Calgon used in water treatment is chemically ____________________?
- A. Sodium phosphate B. Sodium hexametaphosphate C. Calcium phosphate D. Tricresyl phosphate...
- Which of the following is used as a coagulant in water treatment ?
- A. Chloramine B. Chlorine C. Ferrous sulphate D. Hydrogen peroxide...
Advertisement
