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  • Question

  • The centre of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.


  • Options
  • A. 3r/ 8
  • B. 4r/ 3?
  • C. 8r/3
  • D. 3r/4?

  • Correct Answer
  • 4r/ 3? 

    • Engineering Mechanics problems

    Search Results

    • 1. In ideal machines, mechanical advantage is __________ velocity ratio.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
      • Discuss
    • 2. The maximum acceleration of a particle moving with simple harmonic motion is

    • Options
    • A. ?
    • B. ?r
    • C. ?2r
    • D. ?/r
      • Discuss
    • 3. Which of the following are vector quantities?

    • Options
    • A. Linear displacement
    • B. Linear velocity
    • C. Linear acceleration
    • D. all of these
      • Discuss
    • 4. The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. Concurrent forces are those forces whose lines of action

    • Options
    • A. lie on the same line
    • B. meet at one point
    • C. meet on the same plane
    • D. none of these
      • Discuss
    • 6. In a framed structure, as shown in the below figure, the force in the member AC is numerically equal to the force in member BC.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 7. The centre of gravity of an is osceles triangle with base (p) and sides (q) from its base is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. Two bodies of masses m1,and m2 are hung from the ends of a rope, passing oyer a frictionless pulley as shown in the figure below. The acceleration of the string will be

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.

    • Options
    • A. upwards
    • B. downwards
      • Discuss
    • 10. The moment of inertia of a square of side a about its diagonal is

    • Options
    • A. a2/8
    • B. a3/12
    • C. a4/12
    • D. a4/16
      • Discuss

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