logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
  • Question

  • The radius of the Mohr 's circle in the given figure is equal to
    The radius of the Mohr 's circle in the given figure is equal to sum of two principal stresses diffe


  • Options
  • A. sum of two principal stresses
  • B. difference of two principal stresses
  • C. half the sum of two principal stresses
  • D. half the difference of two principal stresses

  • Correct Answer
  • half the difference of two principal stresses 

    • Strength of Materials problems

    Search Results

    • 1. Shear strength of the welded joint for double parallel fillet is (where ? = Allowable shear stress for weld metal)

    • Options
    • A. 0.5 s.l.?
    • B. s.l.?
    • C. 2 s.l.?
    • D. 2.s.l.?
      • Discuss
    • 2. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress is always a tensile stress where as the radial stress is a compressive stress

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 3. A column is said to be a short column, when

    • Options
    • A. its length is very small
    • B. its cross-sectional area is small
    • C. the ratio of its length to the least radhis of gyration is less than 80.
    • D. the ratio of its length to the least radius of gyration is more than 80.
      • Discuss
    • 4. A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be

    • Options
    • A. tensile
    • B. compressive
    • C. shear
    • D. zero
      • Discuss
    • 5. Which of the following statement is wrong?

    • Options
    • A. The deformation of the bar per unit length in the direction of the force is called linear strain.
    • B. The Poisson's ratio is the ratio of lateral strain to the linear strain.
    • C. The ratio of change in volume to the original volume is called volumetric strain.
    • D. The bulk modulus is the ratio of linear stress to the linear strain.
      • Discuss
    • 6. In a thick cylindrical shell subjected to an internal pressure (p), the radial stress across the thickness of the cylinder is

    • Options
    • A. maximum at the outer surface and minimum at the inner surface
    • B. maximum at the inner surface and minimum at the outer surface
    • C. maximum at the outer surface and zero at the inner surface
    • D. maximum at the inner surface arid zero at the outer surface
      • Discuss
    • 7. When a shaft is subjected to a twisting moment, every cross-section of the shaft will be under

    • Options
    • A. tensile stress
    • B. compressive stress
    • C. shear stress
    • D. bending stress
      • Discuss
    • 8. A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The maximum shear stress will be

    • Options
    • A. -100 MPa
    • B. 250 MPa
    • C. 300 MPa
    • D. 400 MPa
      • Discuss
    • 9. A simply supported beam of length l is loaded with a uniformly distributed load of w per unit length. The maximum deflection is and lies at the centre of the beam.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The bending moment diagram for a cantilever beam of length l and carrying a gradually varying load from zero at the free end and w per unit length at the fixed end is a parabolic curve.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.