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  • Question
  • The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (?x and ?y) acting at a body across two mutually perpendicular planes. The resultant stress is given by
    The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (?x a


  • Options
  • A. OC
  • B. OP
  • C. OQ
  • D. PQ

  • Correct Answer
  • OP 


  • Strength of Materials problems


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    • 1. The total strain energy stored in a body is termed as

    • Options
    • A. resilience
    • B. proofresilience
    • C. impact energy
    • D. modulus of resilience
    • Discuss
    • 2. Two bars of different materials and same size are subjected to the same tensile force. If the bars have unit elongation in the ratio of 2:5, then the ratio of modulus of elasticity of the two materials will be

    • Options
    • A. 2:5
    • B. 5:2
    • C. 4:3
    • D. 3:4
    • Discuss
    • 3. A column with maximum equivalent length has

    • Options
    • A. both ends hinged
    • B. both ends fixed
    • C. one end fixed and the other end hinged
    • D. one end fixed and the other end free
    • Discuss
    • 4. If the modulus of elasticity of a material is twice its modulus of rigidity, then the Poisson's ratio of the material is equal to zero.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 5. The ratio of the largest load in a test to the original cross-sectional area of the test piece is called

    • Options
    • A. elastic limit
    • B. yield stress
    • C. ultimate stress
    • D. breaking stress
    • Discuss
    • 6. When a body is subjected to bi-axial stress i.e. direct stresses (?x) and (?y) in two mutually perpendicular planes accompanied by a simple shear stress (?xy), then maximum shear stress is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 7. In order to avoid sliding of masonry dam, the force of friction between the dam and soil should be at least __________ the total water pressure per metre length.

    • Options
    • A. equal to
    • B. 1.5 times
    • C. double
    • D. 2.5 times
    • Discuss
    • 8. When there is no increase or decrease in shear force between two points, it indicates that there is no change in the bending moment between these points.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the

    • Options
    • A. top of the section
    • B. bottom of the section
    • C. neutral axis of the section
    • D. junction of web and flange
    • Discuss


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