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  • Question

  • Rise of a Jack arch is kept about


  • Options
  • A. 1/2 to 1/3 of the span
  • B. 1/3 to 1/4 of the span
  • C. 1/4 to 1/8 of the span
  • D. 1/8 to 1/12 of the span.

  • Correct Answer
  • 1/8 to 1/12 of the span. 

    • Steel Structure Design problems

    Search Results

    • 1. With usual notations of the letters, the shear stress fs at any point of the cross-section is given by

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    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. Tacking rivets in tension members, are provided at a pitch in line not exceeding

    • Options
    • A. 25 cm
    • B. 50 cm
    • C. 75 cm
    • D. 100 cm
      • Discuss
    • 3. Under a concentrated load, bearing stress fb in a beam, is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet).

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    • D.
      • Discuss
    • 4. The economical depth d of a web plate in which allowable bearing stress is fb, and the maximum bending moment is M, as suggested by Rawater and Clark, is

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    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 5. If the area of cross-section of a single angle discontinuous strut is 30 cm2 and allowable working stress corresponding to its slenderness ratio is 625 kg/cm2, the safe load carrying capacity of the member, is

    • Options
    • A. 10 tonnes
    • B. 12 tonnes
    • C. 15 tonnes
    • D. 18 tonnes
    • E. 20 tonnes
      • Discuss
    • 6. For a single section used as a tension member, the given area is assumed

    • Options
    • A. 20% to 30% in excess of the net area
    • B. 30% to 40% in excess of the net area
    • C. 40% to 50% in excess of the net area
    • D. 50% to 60% in excess of the net area
    • E. 60% to 70% in excess of the net area.
      • Discuss
    • 7. A column is carrying an axial load W and an eccentric load P. If A is its cross-sectional area, ex and ey are the eccentricities and Pxx and Zyy the section modulli, the equivalent axial load is obtained from the formula,

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    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 8. The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to

    • Options
    • A. 150 t
    • B. 160 t
    • C. 170 t
    • D. 180 t
    • E. 200 t
      • Discuss
    • 9. In a grillage footing, the maximum shear force occurs at the

    • Options
    • A. edge of grillage beam
    • B. edge of base plate
    • C. centre of grillage beam
    • D. centre of base plate.
      • Discuss
    • 10. If d is the diameter of column, D is the side of square base, W is total axial load and p is the allowable bending stress, the thickness (t) of the base plate, is

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    • B.
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    • D.
      • Discuss

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