Civil Engineering MCQs

2965 MCQs  (Page 275 of 297)

Fresh sewage may become stale in_________________?
A. One hour
B. Two to three hours
C. Three to four hours
D. Six hours
The gradient of sewers depends upon_________________?
A. Velocity of flow
B. Diameter of the sewer
C. Discharge
D. All the above
Sewer pipes need be checked for_________________?
A. Minimum flow
B. Maximum flow
C. Both a. and b.
D. None of these
In septic tanks, decomposition of organic bacteria, is done by_____________________?
A. Anaerobic bacteria
B. Aerobic bacteria
C. Both types of bacterias
D. None of these
The sewerage system originates from__________________?
A. House sewers
B. Lateral sewers
C. Branch sewers
D. Main sewers