Water Supply and Sanitary

311) The maximum velocity occurs in an egg shaped sewer when the ratio of depth of flow to vertical diameter is

Discuss in Comment

0.81

312) the entry of foul smelling gases into the house coming from the sewers can be prevented by

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providing water seals for all the fixtures and a vent pipe in the plumbing system

313) In a water treatment plant, dissolved iron and manganese can be removed from the water by

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aeration and coagulation

314) Which one of the following is the purpose of providing a surge tank in a pipeline carrying water?

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to protect the pipeline against water hammer

315) The maximum flow occurs in an egg-shaped sewer when the ratio of depth of flow to vertical diameter is

Discuss in Comment

0.95

316) A circular sewer of diameter 1 m carries storm water to a depth of 0.75 m. The hydraulic radius is approximately

Discuss in Comment

0.3 m

317) Volatile solids represent

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organic dissolved solids

318) Non-filterable residue of a water sample represent

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dissolved solids

319) Suspended solids are less in ground water because

Discuss in Comment

they are filtered through the soil layers

320) The usual size of suspended solids is

Discuss in Comment

>1 μm and <100 μm

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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