For sewers, inverted siphon is provided for___________________?

Related Mcqs:

1. An inverted siphon is designed generally for____________________?

   A. One pipe
   B. Two pipes
   C. Three pipes
   D. Four pipes

2. 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

3. 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

4. The maximum diameter of sewers adopted in the designs is_______________?

   A. 1.0 m
   B. 2.0 m
   C. 3.0 m
   D. 4.0 m

5. 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

6. 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

7. The small sewers are cleaned by____________________?

   A. Flushing
   B. Cane rodding
   C. Wooden pills
   D. None of these

8. The gradient of sewers depends upon_________________?

   A. Velocity of flow
   B. Diameter of the sewer
   C. Discharge
   D. All the above

9. 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

10. 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