Water Supply and Sanitary

111) The cleaning of slow sand filter is done by

Discuss in Comment

scraping off top layers of sand and admitting water

112) The acid rains are caused by the following pollutants :

Discuss in Comment

SO2 and NOX

113) Select the secondary air pollutants among the following :

Discuss in Comment

peroxy-acyl-nitrate (PAN) and ozone

114) Ozone layer in the upper atmosphere is getting destroyed owing to its reaction with

Discuss in Comment

carbon dioxide

115) The intensification of green house effect is attributed to the increased level of

Discuss in Comment

carbon dioxide

116) The process of lagooning is primarily a means of

Discuss in Comment

disposing of sludge

117) In the two-pipe system of house plumbing, the pipes required are

Discuss in Comment

one soil pipe, one waste pipe and two vent pipes

118) Which of the following unit works in anaerobic conditions?

Discuss in Comment

sludge digestion tank

119) If the sewage contains grease and fatty oils, these are removed in

Discuss in Comment

skimming tanks

120) The relative stability of a sewage sample, whose dissolved oxygen is same as the total oxygen required to satisfy BOD, is

Discuss in Comment

100

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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