A. Top side
B. Bottom side
C. Horizontal side
D. All sides
Related Mcqs:
- Cement concrete sewers are only suitable if non-scouring velocity is between_________________?
A. 2.5 to 3.0 m/sec
B. 3.0 to 4.0 m/sec
C. 3.5 to 4.5 m/sec
D. 4.5 to 5.5 m/sec - For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is____________________?
A. Cast iron sewers
B. Cement concrete sewers
C. Glazed bricks sewers
D. Stone ware sewers - In sewers the highest non-scouring velocity is achieved in________________?
A. Glazed bricks sewers
B. Cast iron sewers
C. Cement concrete sewers
D. Stone ware sewers - The buoyancy depends on__________________?
A. mass of liquid displaced
B. viscosity of the liquid
C. pressure of the liquid displaced
D. depth of immersion
E. none of the above. - The sewer which received discharge from two or more main sewers, is known as_______________?
A. A trunk sewer
B. An outfall sewer
C. A main sewer
D. An intercepting sewer - The drop man holes are generally provided in sewers for____________________?
A. Industrial areas
B. Large town ships
C. Hilly town ships
D. Cities in plains - The gas evolved in sewers is________________?
A. Carbondioxide
B. Hydrogen sulphide
C. Methane
D. All of these - The most efficient cross section of sewers in a separate sewerage system is__________________?
A. Parabolic
B. Circular
C. Rectangular
D. New egged - In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time?
A. 100 mm dia.
B. 150 mm dia.
C. 225 mm dia.
D. All of these - The gas which may cause explosion in sewers, is_________________?
A. Carbondioxide
B. Methane
C. Ammonia
D. Carbon monoxide
