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  • Question
  • The layers of vegetable wastes and night soil alternatively piled above the ground to form a mound, is called


  • Options
  • A. a heap
  • B. plateu
  • C. windrow
  • D. none of these.

  • Correct Answer
  • none of these. 


  • Waste Water Engineering problems


    Search Results


    • 1. No treatment of the sewage is given if dilution factor is

    • Options
    • A. less than 150
    • B. between 150 to 200
    • C. between 200 to 300
    • D. between 400 to 500
    • E. more than 500
    • Discuss
    • 2. Pathogens (or pathogentic bacterias) in water may cause

    • Options
    • A. typhoid
    • B. cholera
    • C. dysentery
    • D. infectious hepatitis
    • E. all the above.
    • Discuss
    • 3. For drains up to 15 cumecs, the depth d and width B are related by

    • Options
    • A. d = 0.2 B
    • B. d = 0.5 B
    • C. B = 0.2 d
    • D. B = 0.5 d.
    • Discuss
    • 4. The laying of sewers is done with

    • Options
    • A. magnetic compass
    • B. theodolite
    • C. level
    • D. clinometer
    • E. plane table.
    • Discuss
    • 5. Sewer manholes are generally provided at

    • Options
    • A. the change of gradient
    • B. the change of direction
    • C. the junctions of sewers
    • D. all of these.
    • Discuss
    • 6. For sewers, inverted siphon is provided for

    • Options
    • A. one pipe
    • B. two pipes
    • C. three pipes
    • D. four pipes.
    • Discuss
    • 7. If the pH value of sewage is 7

    • Options
    • A. it is acidic
    • B. it is alkaline
    • C. it is neutral
    • D. none of these.
    • Discuss
    • 8. For having central angle ?, the area of cross-section of sewers running partially full, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 9. A manhole is generally provided at each

    • Options
    • A. bend
    • B. junction
    • C. change of gradient
    • D. change of sewer diameter
    • E. all the above.
    • Discuss
    • 10. If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is

    • Options
    • A. 1.39 m
    • B. 1.49 m
    • C. 1.59 m
    • D. 1.69 m
    • E. 1.79 m.
    • Discuss


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