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  • Question

  • The least count of a vernier scale is


  • Options
  • A. sum of the smallest divisions of main and vernier scales
  • B. value of one division of the primary scale divided by total number of divisions of vernier scale
  • C. value of one division of vernier scale divided by total number of divisions of primary scale
  • D. none of these.

  • Correct Answer
  • value of one division of the primary scale divided by total number of divisions of vernier scale 

    • More questions

    • 1. A bull nose brick is not used for

    • Options
    • A. rounding off sharp corners
    • B. pillars
    • C. decoration purpose
    • D. arches.
      • Discuss
    • 2. For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of

    • Options
    • A. 100 cm
    • B. 120 cm
    • C. 140 cm
    • D. 160 cm
    • E. 180 cm.
      • Discuss
    • 3. In areas where light rains are uniformly distributed throughout the year, the type of sewerage system to be adopted is

    • Options
    • A. separate system
    • B. combined system
    • C. partially combined system
    • D. none of these.
      • Discuss
    • 4. The formula for the head loss in conduits is generally known as

    • Options
    • A. Hazen-William's formula
    • B. Manning's formula
    • C. Darcy-Weisbach formula
    • D. Nikuradse formula.
      • Discuss
    • 5. Permanent hardness of water can be removed by

    • Options
    • A. adding alum
    • B. adding lime
    • C. adding chlorine
    • D. boiling
    • E. zeolite process.
      • Discuss
    • 6. Pick up the correct statement from the following :

    • Options
    • A. Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the pipe
    • B. Incrustation of the pipe reduces the discharge
    • C. Acidic waters cause corrosion of the pipes
    • D. Corrosion results due to excessive withdrawal of sand along with water
    • E. All the above.
      • Discuss
    • 7. The equivalent axial tensile load Pe, which produces an average axial tensile stress in the section equivalent to the combined stress due to axial tension P and bending M, at the extreme fibre of the section, is given by (where Z is the section modulus of the section).

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is

    • Options
    • A. 8.3 kg/cm2
    • B. 7.6 kg/cm2
    • C. 21.5 kg/cm2
    • D. 11.4 kg/cm2
      • Discuss
    • 9. The bacterias which may survive with or without free oxygen, are called

    • Options
    • A. Aerobic bacterias
    • B. Anaerobic bacterias
    • C. Faculative bacteria's
    • D. None of these.
      • Discuss
    • 10. A pile of length L carrying a uniformly distributed load W per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss

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