Test: Sewage Collection - 2 - Civil Engineering (CE) MCQ

water test

mirror test

ball test

all these tests

at all changes of direction of sewer

at all changes of gradient of sewer

at all junctions of different sewers

all of the above

inverted syphon

sag pipe

depressed sewer

all of these

0.5 m/s

1.0 m/s

2 m/s

2.0 m/s

the minimum velocity of flow required to maintain a certain amount of solids in the flow

the maximum velocity of flow required to maintain a certain amount of solids in the flow

such flow velocity as would be sufficient to flush out any deposited solids in the sewer

such flow velocity as would be sufficient to ensure that sewage does not remain in the sewer

rainfall intensity

velocity in the sewer

time of travel

area served by the sewer

0.33

0.50

0.95

1.00

a

b

c

d

peak hourly rate of flow

average hourly rate of flow

minimum hourly rate of flow

sewer running half full

velocity in sewer X must be equal to velocity in sewer Y

slope of sewer X must be equal to slope of sewer Y

tractive force intensity generated in sewer X must be same as that in sewer Y

the roughness coefficient of X sewer material should be same as that of Y sewer material