Estimating and Costing - Engineering

Q1:

The diameter of a domestic sewer pipe laid at gradient 1 in 100 is recommended

A 100 mm

B 150 mm

C 200 mm

D 175 mm

ANS:B - 150 mm

100 mm - 1 in 60.
150 mm - 1 in 100.
220 mm - 1 in 120.