Waste Water Engineering - Engineering
Q1: Drop manholes at the junctions of sewer lines, are provided ifA
invert level of a branch sewer is more than 60 cm that of the main sewer
B
sewer line runs along a main road
C
ordinary manhole cannot be built
D
two sewer lines intersect.
ANS:A - invert level of a branch sewer is more than 60 cm that of the main sewer Drop manholes at the junctions of sewer lines are provided if the invert level of a branch sewer is more than 60 cm lower than that of the main sewer. So, the correct statement is: "Invert level of a branch sewer is more than 60 cm lower than that of the main sewer." |
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