Home / Mechanical Engineering / Strength of Materials :: Section 7

Mechanical Engineering :: Strength of Materials

  1. The centre to centre distance, between two consecutive rivets in a row, is called

  2. A.
    margin
    B.
    pitch
    C.
    back pitch
    D.
    diagonal pitch

  3. The buckling load for a given column depends upon

  4. A.
    area of cross-section of the column
    B.
    length and least radius of gyration of the column
    C.
    modulus of elasticity for the material of the column
    D.
    all of the above

  5. A continuous beam is one which is

  6. A.
    fixed at both ends
    B.
    fixed at one end and free at the other end
    C.
    supported on more than two supports
    D.
    extending beyond the supports

  7. When a body is subjected to two equal and opposite pulls, as a result of which the body tends to extend its length, the stress and strain induced is

  8. A.
    compressive stress, tensile strain
    B.
    tensile stress, compressive strain
    C.
    tensile stress, tensile strain
    D.
    compressive stress, compressive strain

  9. The hoop stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is (where η = Efficiency of the riveted joint)


  10. 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


  11. The pull required to shear off a rivet, in double shear, per pitch length is

  12. A.
    π/4 x d2 x σt
    B.
    π/4 x d2 x τ
    C.
    π/2 x d2 x σt
    D.
    π/2 x d2 x τ

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


  14. Lame's theory is associated with

  15. A.
    thin cylindrical shells
    B.
    thick cylindrical shells
    C.
    direct and bending stresses
    D.
    none of these

  16. The ductility of the material __________ with the decrease in percentage elongation of a specimen under tensile test.

  17. A.
    increases
    B.
    decreases
    C.
    remains same