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Strength of Materials problems

  • 1. According to Euler's column theory, the crippling load of a column is given by p = ?2 EI/Cl2. In the Euler's formula, the value of C for a column with one end fixed and the other end hinged, is 1/2.

  • Options
  • A. True
  • B. False
    • Discuss
  • 2. The moment of resistance of a balanced reinforced concrete beam is based on the stresses in

  • Options
  • A. steel only
  • B. concrete only
  • C. steel and concrete both
  • D. none of these
    • Discuss
  • 3. The Rankine's constant for a mild steel column with both ends hinged is

  • Options
  • A. 1/750
  • B. 1/1600
  • C. 1/7500
  • D. 1/9000
    • Discuss
  • 4. 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 tangential stress is given by
    Mechanical Engineering Strength of Materials: The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (?

  • Options
  • A. OC
  • B. OP
  • C. OQ
  • D. PQ
    • Discuss
  • 5. Modulus of rigidity may be defined as the ratio of

  • Options
  • A. linear stress to lateral strain
  • B. lateral strain to linear strain
  • C. linear stress to linear strain
  • D. shear stress to shear strain
    • Discuss
  • 6. The maximum bending moment for the beam shown in the below figure, is
    Mechanical Engineering Strength of Materials: The maximum bending moment for the beam shown in the below figure, is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 7. When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the stiffness of the spring is given by

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 8. The shear force at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre, is

  • Options
  • A. zero
  • B. wl/4
  • C. wl/2
  • D. wl2/2
    • Discuss
  • 9. The shear force at a certain point on a beam changes sign from +ve value to -ve value or vice versa. The bending moment at that point will be zero.

  • Options
  • A. True
  • B. False
    • Discuss
  • 10. The capacity of a strained body for doing work on the removal of the straining force, is called

  • Options
  • A. strain energy
  • B. resilience
  • C. proof resilience
  • D. impact energy
    • Discuss

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