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  • Question

  • If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stress in an oblique plane inclined at angle ? to transverse plane will be


  • Options
  • A. If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stre
  • B. If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stre
  • C. If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stre
  • D. If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stre

  • Correct Answer
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    • Strength of Materials problems

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    • 1. The nature of the stress in horizontal members of the truss shown in below figure may be

    • Options
    • A. compressive
    • B. tensile
    • C. shear
    • D. zero
    • E. all the above.
      • Discuss
    • 2. Stress in members of statically determinate simple frames, can be determined by

    • Options
    • A. method of joints
    • B. method of sections
    • C. graphical solution
    • D. all the above.
      • Discuss
    • 3. A simply supported wooden beam 150 cm long and having a cross section 16 cm x 24 cm carries a concentrated load, at the centre. If the permissible stress ft = 75 kg/cm2 and fs = 10 kg/cm2 the safe load is

    • Options
    • A. 3025 kg
    • B. 3050 kg
    • C. 3075 kg
    • D. 3100 kg.
      • Discuss
    • 4. The reaction at the supports will be vertical to the plane of the support if the frame structure rests on

    • Options
    • A. roller supports
    • B. free supports
    • C. hinged supports
    • D. all the above.
      • Discuss
    • 5. If a member carries a tensile force P on its area of cross-section A, the normal stress introduced on an inclined plane making an angle ? with its transverse plane, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 6. In a bar of large length when held vertically and subjected to a load at its lower end, its own-weight produces additional stress. The maximum stress will be

    • Options
    • A. at the lower cross-section
    • B. at the built-in upper cross-section
    • C. at the central cross-section
    • D. at every point of the bar.
      • Discuss
    • 7. A cylinder is said to be thin if the ratio of its thickness and diameter, is less than

    • Options
    • A. 1/25
    • B. 1/20
    • C. 1/15
    • D. 1/10
    • E. 1/5
      • Discuss
    • 8. Stress in a beam due to simple bending, is

    • Options
    • A. directly proportional
    • B. inversely proportional
    • C. curvilinearly related
    • D. none of these.
      • Discuss
    • 9. A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of

    • Options
    • A. 8
    • B. 1/8
    • C. 1/2
    • D. 2
    • E. 3
      • Discuss
    • 10. A simply supported beam (l + 2a) with equal overhangs (a) carries a uniformly distributed load over the whole length, the B.M. changes sign if

    • Options
    • A. l > 2a
    • B. l < 2a
    • C. l = 2a
    • D. l = 4a
    • E. l = 3a.
      • Discuss

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