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Strength of Materials problems

  • 1. The bending moment at C of a portal frame shown in below figure is
    Civil Engineering Strength of Materials: The bending moment at C of a portal frame shown in below figure is

  • Options
  • A. 8 t-m
  • B. 4 t-m
  • C. 28 t-m
  • D. 16 t-m
  • E. zero.
    • Discuss
  • 2. Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose

  • Options
  • A. one end is fixed and other end is hinged
  • B. both ends are hinged or pin jointed
  • C. one end is fixed and the other end entirely free
  • D. both the ends are fixed
  • E. none of the these.
    • Discuss
  • 3. The section modulus of a rectangular section is proportional to

  • Options
  • A. area of the section
  • B. square of the area of the section
  • C. product of the area and depth
  • D. product of the area and width
  • E. half moment of inertia of the section.
    • Discuss
  • 4. The maximum load to which a fillet joint of length L can be subjected to, is

  • Options
  • A. 0.7 x S x fillet size x L
  • B. 2 x S x fillet size x L
  • C. permissible shear stress x fillet size x L
  • D.
  • E. none of these.
    • Discuss
  • 5. A rectangular log of wood is floating in water with a load of 100 N at its centre. The maximum shear force in the wooden log is

  • Options
  • A. 50 N at each end
  • B. 50 N at the centre
  • C. 100 N at the centre
  • D. none of these.
    • Discuss
  • 6. For a beam of uniform strength keeping its depth constant, the width will vary in proportion to

  • Options
  • A. bending moment (M)
  • B. M
  • C. M2
  • D. none of these.
    • Discuss
  • 7. The width of a beam of uniform strength having a constant depth d length L, simply supported at the ends with a central load W is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 8. The ratio of the maximum deflection of a cantilever beam with an isolated load at its free end and with a uniformly distributed load over its entire length, is

  • Options
  • A. 1
  • B.
  • C.
  • D.
  • E.
    • Discuss
  • 9. For a cantilever with a uniformly distributed load W over its entire length L, the maximum bending moment is

  • Options
  • A. WL
  • B. WL
  • C. WL
  • D. W2L
  • E. WL2
    • Discuss
  • 10. The width b and depth d of a beam cut from a wooden cylindrical log of 100 cm diameter for maximum strength are :

  • Options
  • A. b = 57.73 cm d = 81.65 cm
  • B. b = 81.65 cm d = 57.73 cm
  • C. b = 50.00 cm d = 50.00 cm
  • D. b = 40.00 cm d = 80.00 cm
  • E. b = 30.00 cm d = 60.00 cm.
    • Discuss

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