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Home ‣ Civil Engineering ‣ Strength of Materials See What Others Are Saying!
  • Question

  • The width b and depth d of a beam cut from a wooden cylindrical log of 100 cm diameter for maximum strength are :


  • Options
  • A. b = 57.73 cm d = 81.65 cm
  • B. b = 81.65 cm d = 57.73 cm
  • C. b = 50.00 cm d = 50.00 cm
  • D. b = 40.00 cm d = 80.00 cm
  • E. b = 30.00 cm d = 60.00 cm.

  • Correct Answer
  • b = 57.73 cm d = 81.65 cm 

    • More questions

    • 1. If the failure of a finite slope occurs through the toe, it is known as

    • Options
    • A. slope failure
    • B. face failure
    • C. base failure
    • D. toe failure.
      • Discuss
    • 2. The coefficient of compressibility of soil, is the ratio of

    • Options
    • A. stress to strain
    • B. strain to stress
    • C. stress to settlement
    • D. rate of loading to that of settlement.
      • Discuss
    • 3. The minimum thickness of walls built in cement mortar (1 : 6) for a single storey building, is

    • Options
    • A. 10 cm
    • B. 15 cm
    • C. 20 cm
    • D. 25 cm
    • E. 30 cm.
      • Discuss
    • 4. While applying the Bernoulli's equation = total head, the work any section done on the flow system, if any

    • Options
    • A. is added on the right side of the equation
    • B. is added on the left side of the equation
    • C. is ignored
    • D. none of these.
      • Discuss
    • 5. Which one of the following parameters is considered to determine the reflectance of a vegetation canopy

    • Options
    • A. Solar zenith angle
    • B. Azimuth angle
    • C. Look angle
    • D. Number and arrangement of leaves
    • E. All of these
      • Discuss
    • 6. Perpendicularity of an offset may be judged by eye, if the length of the offset is

    • Options
    • A. 5 m
    • B. 10 m
    • C. 15 m
    • D. 20 m.
      • Discuss
    • 7. According to I.C.A.O. the recommended length of air ports is decided on

    • Options
    • A. sea level elevation
    • B. standard sea level temperature (15°C)
    • C. effective gradient percentage
    • D. all the above.
      • Discuss
    • 8. Pick up the ratio which gives us sufficient information by which to judge the financial condition and performance of the firm, from the following:

    • Options
    • A. Liquidity ratio
    • B. Financial leverage ratio
    • C. Activity ratio
    • D. Portability
    • E. None of these
      • Discuss
    • 9. Keeping breadth constant, depth of a cantilever of length l of uniform strength loaded with uniformly distributed load w varies from zero at the free end and

    • Options
    • A. at the fixed end
    • B.
    • C.
    • D. at the fixed end
      • Discuss
    • 10. The technique for establishing and maintaining priorities among the various jobs of a project, is known

    • Options
    • A. Event flow scheduling technique
    • B. Critical ratio scheduling
    • C. Slotting technique for scheduling
    • D. Short interval scheduling.
      • Discuss

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