The design discharge for the separate sewer system shall be taken as_____________?

A. sodium sulphate
B. copper sulphate
C. sodium chloride
D. calcium chloride

1) presumptive coliform test
2) confirmed coliform test
3) completed coliform test
The correct answer is ?
A. only (1)
B. both (1) and (2)
C. both (1) and (3)
D. all (1), (2) and (3)

A. use of metering system
B. good quality of water
C. better standard of living of the people
D. hotter climate

A. air relief valve
B. reflux valve
C. pressure relief valve
D. sluice valve