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  • Question

  • The plastic modulus of a section is 5 x 10-4m3. Its shape factor is 1.2 and the plastic moment capacity is 120 kNm. What is the value of the yield stress of the material?


  • Options
  • A. 100 N/mm2
  • B. 200 N/mm2
  • C. 240 N/mm2
  • D. 288 N/mm2

  • Correct Answer
  • 240 N/mm2 

    • UPSC Civil Service Exam Questions problems

    Search Results

    • 1. A close-coiled helical spring with n coils, mean radius R and diameter d is subjected to an axial load W. What is the compression in the spring?

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. The graphical condition for equilibrium of concurrent forces is that

    • Options
    • A. both the force polygon and the funicular polygon must be closed figures
    • B. funicular polygon should be a closed figure
    • C. force polygon need not be a closed figure
    • D. force polygon should be a closed figure
      • Discuss
    • 3. Consider the following strengths of concrete :
      1. Cube strength
      2. Cylinder strength
      3. Split-tensile strength
      4. Modulus of rupture
      The correct sequence in decreasing order of these strengths is

    • Options
    • A. 3, 4, 2, 1
    • B. 3, 4, 1, 2
    • C. 4, 3, 2, 1
    • D. 4, 3, 1, 2
      • Discuss
    • 4. In the force system shown in the figure, the force CA should be

    • Options
    • A. 5 t
    • B. - 5 t
    • C. 4 t
    • D. - 4 t
      • Discuss
    • 5. A cylindrical shell made of mild steel plate of 100 cm diameter is to be subjected to an internal pressure of 10 kg/cm2. If the material yields at 2000 kg/cm2, assuming factor of safety as four and using maximum principal stress theory, thickness of the plate will be

    • Options
    • A. 5 mm
    • B. 10 mm
    • C. 15 mm
    • D. 20 mm
      • Discuss
    • 6. The figure refers to a channel section of uniform thickness of 1 cm used as a beam with the cross-sectional dimensions shown in cm units. If the Moment of Inertia of channel Ixx be equal to 246 cm4 and C be the shear centre, then the value of e in cm is equal to

    • Options
    • A. 1.5
    • B. 2.5
    • C. 2.25
    • D. 1.67
      • Discuss
    • 7. Consider the following statements :
      1. An ascending gradient of 1 in 100 meets an ascending gradient of 1 in 120 to form a Valley curve.
      2. A falling gradient of 1 in 25 meets a falling gradient of 1 in 50 to form a summit curve.
      3. The length of summit curve is determined on the basis of head light sight distance.
      Which one of the statements given above is/are correct?

    • Options
    • A. 1 and 2
    • B. 2 and 3
    • C. 1 and 3
    • D. 2 only
      • Discuss
    • 8. Activated sludge is the

    • Options
    • A. resultant sludge removable from the aeration unit
    • B. sludge settled in the humus tank
    • C. sludge in the secondary tank post-aeration rich in microbial mass
    • D. sludge.in the secondary tank post aeration, rich in nutrients.
      • Discuss
    • 9. The given figure shows gradually varied flow in an open channel with a beak in bed slope. Types of water surface profiles occurring from left to right are

    • Options
    • A. H2 , S3
    • B. H2 , S2
    • C. H2 , M2
    • D. H3 , M2
      • Discuss
    • 10. For total reaction time of 2.5 seconds, coefficient of friction 0.35, design speed 80 km/h, what is the stopping sight distance on a highway?

    • Options
    • A. 127 m
    • B. 132 m
    • C. 76 m
    • D. 56 m
      • Discuss

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