A. Cast iron sewers
B. Cement concrete sewers
C. Glazed bricks sewers
D. Stone ware sewers
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 - 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 sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is____________________?
A. 100 cm
B. 110 cm
C. 120 cm
D. 150 cm - A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?
A. 1 : 5
B. 1 : 2.5
C. 1 :25
D. 1:V5″
E. 1 : 53/2 - In sewers the effect of scouring is more on__________________?
A. Top side
B. Bottom side
C. Horizontal side
D. All sides - The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is____________________?
A. 30 minutes
B. 1 hour
C. 1 hour and 30 minutes
D. 2 hours - For trunk and out-fall, the type of sewers generally used, is_____________________?
A. Standard egg shaped
B. Circular shaped
C. Horse shoe shaped
D. Parabolic shaped - The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is____________________?
A. 20 m
B. 30 m
C. 45 m
D. 75 m - In sewers the velocity of flow should not be_________________?
A. More than the self-cleansing velocity
B. Less than the self-cleansing velocity
C. Less than 10 m/sec
D. More than 20 m/sec - 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
