Top 250+ Solved Waste Water Treatment MCQ Questions Answer

a. Carbon-monoxide

b. Carbon-dioxide

c. Pure oxygen

d. Ozone

a. Algae

b. Fungi

c. Protozoa

d. All microbes

a. Reaction with bacteria

b. Organics degradation

c. Equipment costs

d. Chemicals

a. Chemicals

b. Costs

c. Energy

d. Fire hazard

a. Iron

b. Manganese

c. Magnesium

d. Bacteria

a. 15 minutes

b. 30 minutes

c. 45 minutes

d. 60 minutes

a. 1000 mg/l

b. 5000 mg/l

c. 10000 mg/l

d. 15000 mg/l

a. Does not requires chemicals

b. Eliminates bad taste

c. Eliminates odour

d. Operational costs are low

a. Violet

b. White

c. Grey

d. Colourless

a. UV or O2

b. O and O2

c. O and UV

d. O2 and CO

a. 1865

b. 1875

c. 1885

d. 1895

a. 1829

b. 1839

c. 1849

d. 1859

a. 8

b. 9

c. 11

d. 7

a. UV rays

b. UV + TiO2

c. Ozone + UV

d. TiO2

a. EE/O =EEt/ Vlog(Ci-Cf)

b. EE/O =EEt/ (Ci-Cf)

c. EE/O =EEt Vlog(Ci-Cf)

d. EE/O =EEt(Ci-Cf)