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  • Question
  • Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is __________ as that of shaft A.


  • Options
  • A. one-half
  • B. double
  • C. four times
  • D. eight times

  • Correct Answer
  • eight times 


  • Strength of Materials problems


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    • 1. When a body is subjected to a direct tensile stress (?x) in one plane accompanied by a simple shear stress (?xy ), the minimum normal stress is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 2. The compressive strength of brittle materials is __________ its tensile strength.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
    • Discuss
    • 3. In spring balances, the spring is used

    • Options
    • A. to apply forces
    • B. to measure forces
    • C. to absorb shocks
    • D. to store strain energy
    • Discuss
    • 4. The strain energy stored in a hollow circular shaft of outer diameter (D) and inner diameter (d) subjected to shear stress is

    • Options
    • A. x Volume of shaft
    • B. x Volume of shaft
    • C. x Volume of shaft
    • D. x Volume of shaft
    • Discuss
    • 5. A body is subjected to a direct tensile stress (?) in one plane. The shear stress is maximum at a section inclined at __________ to the normal of the section.

    • Options
    • A. 45° and 90°
    • B. 45° and 135°
    • C. 60° and 150°
    • D. 30° and 135°
    • Discuss
    • 6. When the retained material is subjected to some superimposed or surcharged load, the total horizontal pressure due to surcharged load is (where p = Intensity of the supercharged load)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 7. The tensile test is carried on __________ materials.

    • Options
    • A. ductile
    • B. brittle
    • C. malleable
    • D. plastic
    • Discuss
    • 8. The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 9. In calculating the strength of a riveted joint in tearing, shearing and crushing, the

    • Options
    • A. actual diameter of rivet is used
    • B. actual diameter of hole drilled for rivet is used
    • C. mean diameter of hole drilled and rivet is used
    • D. smaller of the rivet diameter and hole diameter is used
    • Discuss
    • 10. The pull required to shear off a rivet, in double shear, per pitch length is

    • Options
    • A. ?/4 x d2 x ?t
    • B. ?/4 x d2 x ?
    • C. ?/2 x d2 x ?t
    • D. ?/2 x d2 x ?
    • Discuss


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