Clogging of sewers, is caused due to_______________?
A. Silting
B. Low discharge
C. Greasy and oily matters
D. All the above
Civil Engineering Mcqs
The sewer pipe which carries sewage from a building for immediate disposal is______________?
The sewer pipe which carries sewage from a building for immediate disposal is______________?
A. House sewer
B. Lateral sewer
C. Intercepting sewer
D. Main sewer
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is___________________?
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is___________________?
A. 1 in 60
B. 1 in 100
C. 1 in 120
D. None of these
The sewage is pumped up_______________?
The sewage is pumped up_______________?
A. From low lying areas
B. From flat areas
C. From basements
D. All the above
Which one of the following tests is used for testing sewer pipes ?
Which one of the following tests is used for testing sewer pipes ?
A. Water test
B. Ball test
C. Mirror test
D. All of these
The non-clog pump which permits solid matter to pass out with the liquid sewage, is________________?
The non-clog pump which permits solid matter to pass out with the liquid sewage, is________________?
A. Centrifugal pump
B. Reciprocating pump
C. Pneumatic ejector
D. None of these
When drainage to sewage ratio is 20, the peak dry weather flow is_______________?
When drainage to sewage ratio is 20, the peak dry weather flow is_______________?
A. 20% of the design discharge
B. Slightly less than 5% of the design discharge
C. Slightly more than 5% of the design discharge
D. None of these
Flocculated particles do not change their___________________?
Flocculated particles do not change their___________________?
A. Size
B. Shape
C. Weight
D. None of these
For providing an Indian type W.C., the R.C.C. slabs in the toilet portion__________________?
For providing an Indian type W.C., the R.C.C. slabs in the toilet portion__________________?
A. Should be sunk by 20 cm
B. Should be kept 20 cm above the adjacent portion
C. Should be sunk by 50 cm
D. Need not be sunk
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is______________?
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is______________?
A. 0.68 m
B. 0.88 m
C. 1.36 m
D. 1.76 m