Water Supply and Sanitary

331) Permissible velocity through coarse screens is not greater than

Discuss in Comment

1 m/s

332) Colloidal particles are associated with

Discuss in Comment

Brownian movement

333) Pick up a disinfectant from the following

Discuss in Comment

KMn04

334) Residual Chlorine is given out when

Discuss in Comment

chlorine required for disinfection and oxidation of organic matter is less than applied chlorine

335) In chlorination the most effective kill is due to

Discuss in Comment

HOCI

336) Hardness is removed from water based on the relative insolubility of the following

Discuss in Comment

CaCo3 and Mg(OH)2

337) The solubility of CaC03 in pure water at 20°C is

Discuss in Comment

17 mg/l

338) The solubility of Mg(OH)2 in pure water at 20°C is

Discuss in Comment

9 mg/l

339) The usual amount of residual chlorine required after 10 minutes of contact is

Discuss in Comment

1 mg/l

340) “prechlorination” is done to

Discuss in Comment

reduce tastes and odours

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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