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  • Question

  • The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of


  • Options
  • A. 0.5r
  • B. 0.6r
  • C. 0.7r
  • D. 0.8r

  • Correct Answer
  • 0.6r 

    • Engineering Mechanics problems

    Search Results

    • 1. The centre of percussion is below the centre of gravity of the body and is at a distance equal to

    • Options
    • A. h/kG
    • B. h2/kG
    • C. kG2/h
    • D. h x kG
      • Discuss
    • 2. Which of the following statement is correct?

    • Options
    • A. The periodic time of a particle moving with simple harmonic motion is the time taken by a particle for one complete oscillation,
    • B. The periodic time of a particle moving with simple harmonic motion is directly proportional to its angular velocity.
    • C. The velocity of the particle moving with simple harmonic motion is zero at the mean position.
    • D. The acceleration of the particle moving with simple harmonic motion is maximum at the mean position.
      • Discuss
    • 3. The horizontal range of a projectile (R) is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.

    • Options
    • A. inward
    • B. outward
      • Discuss
    • 5. Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the width (b), is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. If a number of coplaner forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
      • Discuss
    • 7. The velocity of a body on reaching the ground from a height h, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. The term 'centroid' is

    • Options
    • A. the same as centre of gravity
    • B. the point of suspension
    • C. the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
    • D. none of the above
      • Discuss
    • 9. The unit of energy in S.I. units is

    • Options
    • A. dyne
    • B. watt
    • C. kg-m
    • D. joule
      • Discuss
    • 10. If a body is acted upon by a number of coplaner non-concurrent forces, it may

    • Options
    • A. rotate about itself without moving
    • B. move in any one direction rotating about itself
    • C. be completely at rest
    • D. all of these
      • Discuss

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