🏗️Civil Engineering MCQs
Civil Engineering MCQs
479 MCQs101
For house drainage minimum gradient is__________________?
A1 in 60
B1 in 80
C1 in 10
D1 in 400
102
With self cleansing velocity in sewers___________________?
ASilting occurs at bottom
BScouring occurs at bottom
CBoth silting and scouring occur at bottom
DNeither silting nor scouring occurs at bottom
103
The ratio of depths at partial flo________________?
A1 –
B1 –
C½ (1 –
D½ (1 –
104
If the grit in grit chambers is 4.5 million litres per day, its cleaning is done____________________?
AManually
BMechanically
CHydraulically
DElectrically
105
The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is________________________?
A20 cm
B25 cm
C40 cm
D50 cm
106
Oxidation process results in the formation of___________________?
ACarbon dioxide
BNitrates
CSulphates
DAll the above
107
The sewerage system consists of______________________?
AHouse sewer
BLateral sewer
CBranch sewer
DAll of these
108
The minimum diameter of sewer to be adopted is_________________?
A10 cm
B12.5 cm
C15 cm
D25 cm
109
If the depth of partial flow in a sewer of diameter 2 m, is 50 cm, its wetted perimeter is____________________ ?
A1/3
B0/2
C0/3
D2 /3
110
Rate of flow of sewage is generally assumed__________________?
AMore than the rate of water supply
BEqual to the rate of water supply
CLess than the rate of water supply
DAt 150 litres per capita