The maximum diameter of sewers adopted in the designs is_______________?

Related Mcqs:

1. 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

2. For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed________________?

   A. 1.5
   B. 2.0
   C. 2.5
   D. 3.0

3. In olden days the type of section adopted in trunk and out fall sewers was__________________?

   A. Parabolic shaped
   B. Horse shoe shaped
   C. Egg shaped
   D. Circular shaped

4. If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is_______________?

   A. D’ = 0.64 D
   B. D’ = 0.74 D
   C. D’ = 0.84 D
   D. D’ = 0.94 D

5. Large diameter sewers subjected to external pressure alone, are reinforced ______________________?

   A. Near the inner surface of the pipe
   B. Near the outer surface of the pipe
   C. Both A. and B.
   D. With elliptical cage

6. The minimum recommended diameter of sewers, is_________________?

   A. 5 cm
   B. 10 cm
   C. 15 cm
   D. 20 cm

7. For large sewers, maximum distance between manholes may be_______________?

   A. 50 m
   B. 100 m
   C. 200 m
   D. 300 m

8. The minimum diameter of sewer to be adopted is_________________?

   A. 10 cm
   B. 12.5 cm
   C. 15 cm
   D. 25 cm

9. In areas where light rains are uniformly distributed throughout the year, the type of sewerage system to be adopted is_______________?

   A. Separate system
   B. Combined system
   C. Partially combined system
   D. None of these

10. Maximum permissible velocity 1.5 m/sec, is adopted in drains_______________________?

    A. With beds of rocks and gravels
    B. Lined with stones
    C. Both A. and B.
    D. Neither A. nor B.