If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be___________________?

Related Mcqs:

1. The center of percussion of the homogeneous rod of length L suspended at the top will be__________________?

   A. L/2
   B. L/3
   C. 3L/4
   D. 2L/3
   E. 3L/8

2. The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be______________?

   A. r/2
   B. 2r/3
   C. r/A
   D. 3r/2
   E. 3r/A

3. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is_________________?

   A. same
   B. double
   C. half
   D. four times
   E. one fourth

4. Center of percussion is______________?

   A. the point of C.G.
   B. the point of metacentre
   C. the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
   D. point of suspension
   E. the point in a body about which it can rotate horizontally and oscillate under the influence of gravity

5. Center of gravity of a solid cone lies on the axis at the height_______________?

   A. one-fourth of the total height above base
   B. one-third of the total height above base
   C. one-half of the total height above base
   D. three-eighth of the total height above the base
   E. none of the above

6. Center of gravity of a thin hollow cone lies on the axis at a height of________________?

   A. one-fourth of the total height above base
   B. one-third of the total height above base
   C. one-half of the total height above base
   D. three-eighth of the total height above the base
   E. none of the above

7. The C.G. of a plane lamina will not be at its geometrical centre in the case of a______________?

   A. right angled triangle
   B. equilateral triangle
   C. square
   D. circle
   E. rectangle

8. A force acting on a body may_______________?

   A. introduce internal stresses
   B. balance the other forces acting on it
   C. retard its motion
   D. change its motion
   E. all of the above

9. The maximum frictional force which comes into play when a body just begins to slide over another surface is called_____________________?

   A. limiting friction
   B. sliding friction
   C. rolling friction
   D. kinematic friction
   E. dynamic friction

10. If a rigid body is in equilibrium under the action of three forces, then_______________?

    A. these forces are equal
    B. the lines of action of these forces meet in a point
    C. the lines of action of these forces are parallel
    D. B. and C. above
    E. none of the above