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Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
  • Question

  • A closely-coiled helical spring of stiffness k is cut into (n) equal parts. The stiffness in each part of the spring will be


  • Options
  • A. kn
  • B. nk
  • C. nk
  • D. nk2

  • Correct Answer
  • nk 

    • Strength of Materials problems

    Search Results

    • 1. A rectangular beam subjected to a bending moment is shown in the below figure. The upper layer of the beam will be in tension.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. In case of an over-reinforced beam, the depth of actual neutral axis is the same as that of the critical neutral axis.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The maximum shear stress is __________ the algebraic difference of maximum and minimum normal stresses.

    • Options
    • A. equal to
    • B. one-fourth
    • C. one-half
    • D. twice
      • Discuss
    • 4. The compression test is carried on __________ materials.

    • Options
    • A. ductile
    • B. brittle
    • C. malleable
    • D. plastic
      • Discuss
    • 5. In a thin cylindrical shell subjected to an internal pressure p, the ratio of longitudinal stress to the hoop stress is

    • Options
    • A. 1/2
    • B. 3/4
    • C. 1
    • D. 1.5
      • Discuss
    • 6. The bending moment at the ends of a simply supported beam will be zero.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 7. For no tension condition in the base of a short column of circular section, the line of action of the load should be within a circle of diameter equal to __________ of the main circle.

    • Options
    • A. one-half
    • B. one-third
    • C. one-fourth
    • D. one-eighth
      • Discuss
    • 8. When a body is subjected to a direct tensile stress (?) in one plane, then maximum normal stress occurs at a section inclined at __________ to the normal of the section.

    • Options
    • A. 0°
    • B. 30°
    • C. 45°
    • D. 90°
      • Discuss
    • 9. In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.

    • Options
    • A. same as
    • B. less than
    • C. greater than
      • Discuss
    • 10. A beam extending beyond the supports is called

    • Options
    • A. simply supported beam
    • B. fixed beam
    • C. overhanging beam
    • D. cantilever beam
      • Discuss

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