logo

CuriousTab

CuriousTab

Discussion

Home ‣ Civil Engineering ‣ Waste Water Engineering Comments
  • Question

  • Which one of the following resists hydrogen sulphide corrosion


  • Options
  • A. R.C.C.
  • B. Glazed stone wares
  • C. Asbestos cement
  • D. Glazed ware.

  • Correct Answer
  • Glazed ware. 

    • Waste Water Engineering problems

    Search Results

    • 1. As compared to fresh river water, sea water contains oxygen

    • Options
    • A. 10% less
    • B. 20% less
    • C. 10% more
    • D. 20% more.
      • Discuss
    • 2. If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity, is

    • Options
    • A. 1 in 60
    • B. 1 in 100
    • C. 1 in 120
    • D. none of these.
      • Discuss
    • 3. Oxidation process results in the formation of

    • Options
    • A. carbon dioxide
    • B. nitrates
    • C. sulphates
    • D. all the above.
      • Discuss
    • 4. Before discharging the foul sewage into rivers, it is generally treated by

    • Options
    • A. screening
    • B. sedimentation
    • C. oxidation
    • D. sludge digestion and disinfection
    • E. all the above.
      • Discuss
    • 5. Boussinesq's equation for ascertaining unit pressure at a depth H on sewers due to traffic loads, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
      • Discuss
    • 6. Dry weather flow is :

    • Options
    • A. average daily rate of flow
    • B. average monthly rate of flow
    • C. average annual rate of flow
    • D. water supply allowance per capita
    • E. none of these.
      • Discuss
    • 7. In 1000 kg of sewage, the total solids approximate

    • Options
    • A. 0.5 to 1.0 kg
    • B. 1 kg to 2.0 kg
    • C. 5 kg to 7.5 kg
    • D. 7.5 kg to 10 kg.
      • Discuss
    • 8. If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of

    • Options
    • A. degradation
    • B. active decomposition
    • C. recovery
    • D. cleaner water
    • E. none of these.
      • Discuss
    • 9. In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is

    • Options
    • A. 213.5 cm/sec
    • B. 313.5 cm/sec
    • C. 413.5 cm/sec
    • D. 500 cm/sec.
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.