Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for
A). Unexpected large scale infiltration of stream water
B). Unexpected increase in the population
C). Under estimates of maximum and average flows
D). All of the above
2. The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be
4. The intrinsic equation of catenary is
5. The thickness of each leaf of a cavity wall shall not be less than
7. In computing depreciation of an equipment, which of the following represents the first cost?
8. According to Whitney’s theory, ultimate strain of concrete is assumed to be
9. The minimum recommended diameter of sewers, is
10. The type of sewer which is suitable for both combined and separate system is