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  • Question
  • A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is


  • Options
  • A. 25 N
  • B. 30 N
  • C. 35 N
  • D. 40 N

  • Correct Answer
  • 35 N 


  • Theory of Structures problems


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    • 1. The total strain energy of a beam of length L, having moment of inertia of its section I, when subjected to a bending moment M, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 2. If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:

    • Options
    • A. Q = S + F
    • B. Q = S - F
    • C. Q = F - S
    • D. Q = S x F
    • E.
    • Discuss
    • 3. A concentrated load P is supported by the free end of a quadrantal ring AB whose end B is fixed. The ratio of the vertical to horizontal deflections of the end A, is

    • Options
    • A. ?
    • B.
    • C.
    • D.
    • Discuss
    • 4. Keeping the depth d constant, the width of a cantilever of length l of uniform strength loaded with a uniformly distributed load w varies from zero at the free end and

    • Options
    • A. at the fixed end
    • B. at the fixed end
    • C. at the fixed end
    • D. at the fixed end
    • Discuss
    • 5. Principal planes are subjected to

    • Options
    • A. normal stresses only
    • B. tangential stresses only
    • C. normal stresses as well as tangential stresses
    • D. none of these.
    • Discuss
    • 6. The point of contraflexure is the point where

    • Options
    • A. B.M. changes sign
    • B. B.M. is maximum
    • C. B.M. is minimum
    • D. S.F. is zero.
    • Discuss
    • 7. For 12 mm thick cement plastering 1 : 6 on 100 sq.m new brick work, the quantity of cement required, is

    • Options
    • A. 0.200 m3
    • B. 0.247 m3
    • C. 0.274 m3
    • D. 0.295 m3
    • Discuss
    • 8. Pick up the correct statement from the following:

    • Options
    • A. The bent up bars at a support resist the negative bending moment
    • B. The bent up bars at a support resist the sharing force
    • C. The bending of bars near supports is generally at 45°
    • D. All the above.
    • Discuss
    • 9. The area of the cross-section of a road fully in banking shown in the given figure, is

    • Options
    • A.
    • B.
    • C.
    • D. None of these
    • Discuss
    • 10. The assumption on which the trapezoidal formula for volumes is based, is

    • Options
    • A. The end sections are parallel planes
    • B. The mid-area of a pyramid is half the average area of the ends
    • C. The volume of the prismoidal is over-es-timted and hence a prismoidal correction is applied
    • D. All the above.
    • Discuss


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