🏗️Civil Engineering MCQs
Civil Engineering MCQs
479 MCQs1
If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is_________________?
A100 cm
B90 cm
C80 cm
D50 cm
2
Skimming tanks are__________________?
AUsed to remove the grease and oil
BThose from which sludge is skimmed out
CTanks provided with self- cleansing screens
DImproved version of grit chambers
3
The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by______________________?
ABazin
BCrimp and Bruges
CWilliam-Hazen
DKutter
4
The sewer which resists sulphide corrosion, is____________________?
ABrick sewer
BCast iron sewer
CC. sewer
DLead sewer
5
The rainfall at any place may be determined by__________________?
AIts intensity
BIts direction
CIts frequency
DAll the above
6
The sludge does not contain waste water from_________________?
ABath rooms
BWash basins
CKitchen sinks
DToilets
7
In trickling filter, B.O.D. is reduced to___________________?
A30 to 40%
B40 to 60%
C60 to 80%
D80 to 90%
8
In normal conditions, the period for sludge digestion, is_______________?
A10 days
B20 days
C30 days
D60 days
9
are available in size Stoneware sewers________________?
A10 cm
B15 cm
C20 cm
DAll the above
10
In a sludge tank, the gas mainly produced, is_________________?
AOxygen
BNitrogen
CHydrogen
DCarbon dioxide