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  • Question

  • If ?w is the unit weight of water, r the hydraulic mean depth of the sewer and S the bed slope of the sewer, then the tractive force exerted by flowing water, is


  • Options
  • A. ?w . r . S
  • B. ?w r1/2 . S
  • C. ?w r S
  • D. ?w r2/3 S

  • Correct Answer
  • ?w . r . S 

    • More questions

    • 1. The digested sludge from septic tanks, is removed after a maximum period of

    • Options
    • A. 3 years
    • B. 3.5 years
    • C. 4 years
    • D. 5 years.
      • Discuss
    • 2. Chlorination of water does not remove

    • Options
    • A. ammonia content
    • B. B.O.D.
    • C. organic matter content
    • D. dissolved oxygen.
      • Discuss
    • 3. If the loss due to friction in pipes is 4 m, the total losses in strainer and bends may be taken as

    • Options
    • A. 0.10 m
    • B. 0.20 m
    • C. 0.5 m
    • D. 1.0 m.
      • Discuss
    • 4. Stoke's law does not hold good if the size of particle is smaller than

    • Options
    • A. 0.0002 mm
    • B. 0.002 mm
    • C. 0.02 mm
    • D. 0.2 mm
      • Discuss
    • 5. Stoneware sewers are available in size

    • Options
    • A. 10 cm
    • B. 15 cm
    • C. 20 cm
    • D. 25 cm
    • E. all the above.
      • Discuss
    • 6. The diameter of main bars in R.C.C. columns, shall not be less than

    • Options
    • A. 6 mm
    • B. 8 mm
    • C. 10 mm
    • D. 12 mm
      • Discuss
    • 7. The inner section of a cavity wall, is generally known as

    • Options
    • A. butress
    • B. leaf wall
    • C. pillaster
    • D. pillar.
      • Discuss
    • 8. The product of CAF (S P) and PWF (S P) is:

    • Options
    • A. 1/2
    • B. 1
    • C. 1/3
    • D. 1/4
      • Discuss
    • 9. For critical flow, the Froude number is :

    • Options
    • A. 1.0
    • B. less than 1.0
    • C. more than 1.0
    • D. 2
      • Discuss
    • 10. A wing rail is renewed or reconditioned if its maximum vertical wear is

    • Options
    • A. 9.5 m
    • B. 7.5 m
    • C. 5.5 m
    • D. 5.0 m
      • Discuss

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