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  • Question

  • The relation between modulus of elasticity (E) and modulus of rigidity (C) is given by


  • Options
  • A. The relation between modulus of elasticity (E) and modulus of rigidity (C) is given by
  • B. The relation between modulus of elasticity (E) and modulus of rigidity (C) is given by
  • C. The relation between modulus of elasticity (E) and modulus of rigidity (C) is given by
  • D. The relation between modulus of elasticity (E) and modulus of rigidity (C) is given by

  • Correct Answer
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    • Strength of Materials problems

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    • 1. A fixed beam is one which is fixed at __________ of its ends.

    • Options
    • A. one
    • B. both
      • Discuss
    • 2. For a given stress, the ratio of moment of resistance of a beam of square cross-section when placed with its two sides horizontal to the moment of resistance with its diagonal horizontal, is

    • Options
    • A. 1/2
    • B. 1
    • C. 1/2
    • D. 2
      • Discuss
    • 3. When a rectangular beam is loaded transversely, the maximum tensile stress is developed on the

    • Options
    • A. top layer
    • B. bottom layer
    • C. neutral axis
    • D. every cross-section
      • Discuss
    • 4. The torsional rigidity of a shaft is expressed by the torque required to produce a twist of one radian per unit length of a shaft.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Factor of safety is defined as the ratio of

    • Options
    • A. ultimate stress to working stress
    • B. working stress to ultimate stress
    • C. breaking stress to ultimate stress
    • D. ultimate stress to breaking stress
      • Discuss
    • 6. The bending moment on a section is maximum where shear force is

    • Options
    • A. minimum
    • B. maximum
    • C. changing sign
    • D. zero
      • Discuss
    • 7. When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is

    • Options
    • A. tensile stress
    • B. compressive stress
    • C. shear stress
    • D. thermal stress
      • Discuss
    • 8. Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called

    • Options
    • A. strain
    • B. stress
    • C. pressure
    • D. modulus of elasticity
      • Discuss
    • 9. The layer at the centre of gravity of the beam as shown in the below figure, will be

    • Options
    • A. in tension
    • B. in compression
    • C. neither in tension nor in compression
      • Discuss
    • 10. A simply supported beam 'A' of length l, breadth b and depth d carries a central point load W. Another bream 'B' has the same length and breadth but its depth is doubled. The deflection of beam 'B' will be double as compared to beam 'A'.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss

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