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MCQs

Total Questions : 605 | Page 2 of 61 pages
Question 11. Shear strain energy theory for the failure of a material at elastic limit, is due to
  1.    Rankine
  2.    Guest or Trecas
  3.    St. Venant
  4.    Von Mises
 Discuss Question
Answer: Option D. -> Von Mises
Question 12. The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is
  1.    F/A
  2.    F/2A
  3.    3F/2A
  4.    2F/3A
 Discuss Question
Answer: Option C. -> 3F/2A
Question 13. A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm². If the slope at the ends is 0.005 radian and the value of E = 0.2 × 106 N/mm², the depth of the joist, is
  1.    200 mm
  2.    250 mm
  3.    300 mm
  4.    400 mm
 Discuss Question
Answer: Option D. -> 400 mm
Question 14. A short column (30 cm × 20 cm) carries a load P 1 at 4 cm on one side and another load P2at 8 cm on the other side along a principal section parallel to longer dimension. If the extreme intensity on either side is same, the ratio of P1 to P2 will be
  1.    2/3
  2.    3/2
  3.    8/5
  4.    5/8
 Discuss Question
Answer: Option C. -> 8/5
Question 15. A compound truss may be formed by connecting two simple rigid frames, by
  1.    Two bars
  2.    Three bars
  3.    Three parallel bars
  4.    Three bars intersecting at a point
 Discuss Question
Answer: Option B. -> Three bars
Question 16. If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit length over the entire span,
  1.    Horizontal thrust is wl2/8h
  2.    S.F. will be zero throughout
  3.    B.M. will be zero throughout
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 17. Constant, depth of a cantilever of length of uniform strength loaded with Keeping breadth uniformly distributed load varies from zero at the free end and
  1.    2w w l at the fixed end
  2.    l) at the fixed end
  3.    w l) at the fixed end
  4.    3w l at the fixed end
 Discuss Question
Answer: Option B. -> l) at the fixed end
Question 18. A cantilever of length ‘L’ is subjected to a bending moment ‘M’ at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is
  1.    ML/EI
  2.    ML/2EI
  3.    ML²/2EI
  4.    ML²/3EI
 Discuss Question
Answer: Option D. -> ML²/3EI
Question 19. A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm², the deflection of the free end, is
  1.    2 mm
  2.    3 mm
  3.    4 mm
  4.    5 mm
 Discuss Question
Answer: Option D. -> 5 mm
Question 20. In the truss, the force in the member AC is
  1.    6.25 t compressive
  2.    8.75 t tensile
  3.    t tensile
  4.    t compressive
 Discuss Question
Answer: Option D. -> t compressive

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