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  • Question

  • M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is


  • Options
  • A. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the pl(D4 + d4)
  • B. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the pl(D4 - d4)
  • C. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the pl(D4 + d4)
  • D. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the pl(D4 x d4).

  • Correct Answer
  • (D4 - d4) 

    • More questions

    • 1. A continuous beam is loaded as shown in the figure below. Assuming a plastic moment capacity equal to MP, the minimum load at which the beam would collapse is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. An outlet irrigates an area of 20 ha. The discharge (l/s) required at this outlet to meet the evapotranspiration requirement of 20 mm occurring uniformly in 20 days neglecting other field losses is

    • Options
    • A. 2.52
    • B. 2.31
    • C. 2.01
    • D. 1.52
      • Discuss
    • 3. A three hinged arch shown in the below figur is quarter of a circle, If the vertical and horizontal components of reaction at A are equal, the value of ? is

    • Options
    • A. 60°
    • B. 45°
    • C. 30°
    • D. None in (0°, 90°)
      • Discuss
    • 4. The problem of lateral buckling can arise only in those steel beams which have

    • Options
    • A. Moment of inertia about the bending axis larger than the other
    • B. Moment of inertia about the bending axis smaller than the other
    • C. Fully supported compression flange
    • D. None of the above.
      • Discuss
    • 5. While deriving an expression for loss of head due to a sudden expansion in a pipe, in addition to the continuity and impulse-momentum equations, one of the following assumptions is made :

    • Options
    • A. Head loss due to friction is equal to the head loss in eddying motion
    • B. The mean pressure in eddying fluid is equal to the downstream pressure
    • C. The mean pressure in eddying fluid is equal to the upstream pressure
    • D. Head lost in eddies is neglected
      • Discuss
    • 6. The Total pressure on the vertical face of a retaining wall of height h exerted by the retained earth weighing w per unit volume having an angle of surcharge ?°, is :

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. Shear centre of a half circular section of radius r and of constant thickness, lies at a distance of x from the centre where x is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. Columns may be made of plain concrete if their unsupported lengths do not exceed their least lateral dimension

    • Options
    • A. two times
    • B. three times
    • C. four times
    • D. five times
    • E. six times.
      • Discuss
    • 9. The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or

    • Options
    • A. 12 bar diameters
    • B. 18 bar diameters
    • C. 24 bar diameters
    • D. 30 bar diameters
    • E. 36 bar diameters
      • Discuss
    • 10. A triaxial shear test is prefered to direct shear test, because

    • Options
    • A. it can be performed under all three driange conditions with complete control
    • B. precise measurement of pore pressure and change in volume during test, is not posible
    • C. stress distribution on the failure plane, is non uniform
    • D. none of these.
      • Discuss

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