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  • Question

  • A tensile test is performed on a round bar. After fracture, it has been found that the diameter remains approximately same at fracture. The material under test was


  • Options
  • A. mild steel
  • B. cast iron
  • C. glass
  • D. copper

  • Correct Answer
  • cast iron 

    • Strength of Materials problems

    Search Results

    • 1. The proof resilience per unit volume of a material is known as modulus of resilience.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A load which acts at a point on a beam is not called uniformly distributed load.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. The shear force diagram of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length will be

    • Options
    • A. a right angled triangle
    • B. an issoscles triangle
    • C. an equilateral triangle
    • D. a rectangle
      • Discuss
    • 4. In a stress-strain diagram for mild steel, as shown in the below figure, the point A represents

    • Options
    • A. elastic limit
    • B. upper yield-point
    • C. lower yield point
    • D. breaking point
      • Discuss
    • 5. According to Euler's column theory, the crippling load for a column of length (l) with one end fixed and the other end hinged, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. The thermal stress in a bar is __________ proportional to the change in temperature.

    • Options
    • A. directly
    • B. indirectly
      • Discuss
    • 7. A spring, when loaded, is permanently distorted and recover its original shape when the load is removed.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 8. The neutral axis of a beam is subjected to __________ stress.

    • Options
    • A. zero
    • B. maximum tensile
    • C. minimum tensile
    • D. maximum compressive
      • Discuss
    • 9. The load at which the column just buckles, is known as

    • Options
    • A. buckling load
    • B. critical load
    • C. crippling load
    • D. any one of these
      • Discuss
    • 10. A tensile test is performed on a mild steel round bar. Its diameter after fracture will

    • Options
    • A. remain same
    • B. increase
    • C. decrease
    • D. depend upon rate of loading
      • Discuss

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