Water Supply and Sanitary

341) Plain chlorination is done after

Discuss in Comment

filtration

342) Super chlorination is done

Discuss in Comment

during an epidemic

343) Dechlorination is done with

Discuss in Comment

sulphur dioxide

344) “Free chlorine Residual” means

Discuss in Comment

HOCI + OCI

345) The jar test is to be carried out immediately after the collection of the water sample so that

Discuss in Comment

concentration of dissolved gases as oxygen, nitrogen, carbon dioxide shall not change

346) Lime is added to water or waste samples to

Discuss in Comment

destabilise colloidal oil and organic emulsion suspensions

347) Optimum dose of coagulant means the least dose that produces

Discuss in Comment

readily settleable floc

348) Over flow rate of a sedimentation tank is

Discuss in Comment

Q / Plan area

349) Generally “flow through period” of a sedimentation tank is

Discuss in Comment

less than detention period

350) Coagulating power of a chemical increases with its

Discuss in Comment

valency

Subject Notes

→ Hydraulics → Structural Design-RCC → Irrigation Engineering → Highway Engineering → Engineering Survey → Water supply & sanitary → Soil Mechanics → Mechanics and structure → Construction Management → Building Construction → Estimating and Costing → Engineering Drawing → Building Material → Airport Engineering

Objective Box

→ Airport Engineering → Building Construction → Construction Management → Construction Materials → Engineering Drawing → Engineering Survey → Estimating and Costing → Highway Engineering → Fluid & Hydraulics → Soil Mechanics → Structural Design - RCC → Water Supply and Sanitary → Irrigation Engineering → Mechanics and Structure → Civil MCQ Set 1 → Civil MCQ Set 2 → Civil MCQ Set 3 → Civil MCQ Set 4

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