A. inlet
B. manhole
C. drop manhole
D. catch basin
Related Mcqs:
- Period of cleaning of slow sand filters is about________________?
A. 24 – 48 hours
B. 10-12 days
C. 2-3 months
D. 1-2 year - Cleaning is done by________________?
1) scraping and removal in filters slow sand
2) back washing in slow sand filters
3) scraping and removal in filters rapid sand
4) back washing in rapid sand filters
The correct answer isA. (1) and (2)
B. (2) and (3)
C. (1) and (4)
D. (2) and (4) - The design discharge for the separate sewer system shall be taken as_____________?
A. equal to dry weather flow (DWF)
B. 2xDWF
C. 3 x DWF
D. 6xDWF - Most suitable section of sewer in separate sewage system is________________?
A. rectangular section
B. circular section
C. standard form of egg shaped sewer
D. modified egg shaped section - The effect of increasing diameter of sewer on the self cleansing velocity is_____________?
A. to decrease it
B. to increase it
C. fluctuating
D. nil - The type of sewer which is suitable for both combined and separate system is_____________?
A. circular sewer
B. egg shaped sewer
C. horse-shoe type sewer
D. semi-elliptical sewer - The hydraulic mean depth (HMD. for an egg-shaped sewer flowing two-third full is_______________?
A. equal to HMD when flowing full
B. less than HMD when flowing full
C. greater than HMD when flowing full
D. none of the above - The design discharge for the combined sewer system shall be taken as________________?
A. equal to rainfall
B. rainfall + DWF
C. rainfall + 2 DWF
D. rainfall + 6 DWF - The slope of sewer shall be__________________?
A. given in the direction of natural slope of ground
B. given in the direction opposite to natural slope of ground
C. zero
D. steeper than 1 in 20 - A sewer that receives the discharge of a number of house sewers is called________________?
A. house sewer
B. lateral sewer
C. intercepting sewer
D. submain sewer
