A. Suspended inorganic matter
B. Dissolved solids
C. Floating solids
D. Dissolved gases
Related Mcqs:
- Maximum permissible turbidity in potable water is _____________ ppm?
A. 1
B. 10
C. 250
D. 1000 - Black smoke coming out of the chimney of a furnace is an indication of the use of ______________ in the furnace?
A. Low amount of excess combustion air
B. Large quantity of excess combustion air
C. Hydrocarbon fuel
D. Pulverised coal as fuel - Fluorosis is caused due to the presence of excessive amount of ______________ in drinking water?
A. Mercury
B. Lead
C. Fluoride
D. Arsenic - Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes_______________?
A. Foaming
B. Odour nuisances
C. Undesirable plant growth
D. Turbidity - Presence of dissolved impurities of ______________ is responsible for the red brownish color of water?
A. Carbonates
B. Bi-carbonates
C. Iron & manganese
D. Arsenic - Presence of _____________ hardness is responsible for the temporary hardness in water?
A. Carbonate
B. Calcium
C. Chloride
D. Sulphate - Presence of excess fluorine in water causes__________________?
A. Dental cavity
B. Tooth decay
C. Fluorosis
D. Respiratory disease - Presence of ____________ in water stream are deleterious to aquatic life?
A. Soluble and toxic organics
B. Suspended solids
C. Heavy metals and cyanides
D. All A., B. & C. - 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) - Presence of bacteria in potable (drinking) water causes_________________?
A. Turbidity
B. Disease
C. Bad odour
D. Bad taste & colour
