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  • Question
  • When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)


  • Options
  • A. When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the
  • B. When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the
  • C. When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the
  • D. When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the

  • Correct Answer
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  • Strength of Materials problems


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    • 1. When there is no increase or decrease in shear force between two points, it indicates that there is no change in the bending moment between these points.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. In order to avoid sliding of masonry dam, the force of friction between the dam and soil should be at least __________ the total water pressure per metre length.

    • Options
    • A. equal to
    • B. 1.5 times
    • C. double
    • D. 2.5 times
    • Discuss
    • 3. When a body is subjected to bi-axial stress i.e. direct stresses (?x) and (?y) in two mutually perpendicular planes accompanied by a simple shear stress (?xy), then maximum shear stress is

    • Options
    • A.
    • B.
    • C.
    • D.
    • 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 resultant stress is given by

    • Options
    • A. OC
    • B. OP
    • C. OQ
    • D. PQ
    • Discuss
    • 5. The total strain energy stored in a body is termed as

    • Options
    • A. resilience
    • B. proofresilience
    • C. impact energy
    • D. modulus of resilience
    • Discuss
    • 6. A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the

    • Options
    • A. top of the section
    • B. bottom of the section
    • C. neutral axis of the section
    • D. junction of web and flange
    • Discuss
    • 7. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged.

    • Options
    • A. l/8
    • B. l/4
    • C. l/2
    • D. l
    • Discuss
    • 8. When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.

    • Options
    • A. equal to
    • B. directly proportional to
    • C. inversely proportional to
    • D. independent of
    • Discuss
    • 9. Parallel fillet welds are designed for bending strength.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 10. The deformation of the bar per unit length in the direction of the force is known as

    • Options
    • A. linear strain
    • B. lateral strain
    • C. volumetric strain
    • D. shear strain
    • Discuss


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