For trunk and out-fall, the type of sewers generally used, is_____________________?

Related Mcqs:

1. 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

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. 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

4. The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________?

   A. 0.05552 cumec
   B. 0.05554 cumec
   C. 0.05556 cumec
   D. 0.0556 cumec

5. 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

6. In sewers the gas generally found, is_________________?

   A. Hydrogen sulphide (H2S)
   B. Carbon dioxide (CO2)
   C. Methane (CH4)
   D. All the above

7. The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is____________________?

   A. 1.5
   B. 2.0
   C. 3.0
   D. 4.0

8. The quantity of liquid waste which flows in sewers during the period of rainfall, is known__________________?

   A. Sanitary sewage
   B. Industrial waste
   C. Storm sewage
   D. None of these

9. The suitable cross-section of sewers to carry combined flow, is__________________?

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

10. The most efficient cross-section of sewers in a combined sewerage system is________________?

    A. Parabolic
    B. Circular
    C. Rectangular
    D. New egged