Civil Engineering MCQs

Page No. 178

A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called________________?


a house sewer


blateral sewer


c main sewer


d submain sewer


View Answer house sewer

Scour valves are provided ______________?


aat street corners to control the flow of waterat street corners to control the flow of water


bat every depression and dead ends to drain out the waste water that may collect there


cat the foot of rising main along the slope to prevent back running of water


d at every summit of rising mains



The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is_______________?


acheck valve


bsluice valve


csafety valve


dscour valve


View Answer sluice valve

The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is________________?


a circle method


bequivalent pipe method


celectrical analysis method


dHardy cross method


View Answer circle method

The suitable layout of distribution system for a city with roads of rectangular pattern is______________?


a grid iron system


bdead end system


cring system


dradial system


View Answer grid iron system

The suitable layout of a distribution system for irregularly growing town is_______________?


adead end system


bgrid iron system


cradial system


dring system


View Answer dead end system

Activated carbon is used for_____________?


a disinfection


bremoving hardness


cremoving odours


dremoving corrosiveness


View Answer removing odours

The major disadvantage of lime soda process of water softening is that_________________?


a it is unsuitable for turbid and acidic water


bhuge amount of precipitate is formed which creates a disposal problem


c the effluent cannot be reduced to zero hardness


dit is unsuitable for softening the water of excessive hardness



Disinfection efficiency is________________?


areduced at higher pH value of wate


b unaffected by pH value of water


c increased at higher pH value of water


dhighest at pH value equal to 7



The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is________________?


a9500


b 9800


c 10100


d10920


View Answer 10920

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