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

Related Mcqs:

1. 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

2. Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction__________________?

   A. along the plane
   B. horizontally
   C. vertically
   D. at an angle equal to the angle of friction to the inclined plane
   E. unpredictable

3. A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to___________________?

   A. W
   B. W sin (a + $)
   C. Wtan(a + <|))
   D. Wan(a-)
   E. Wtana

4. The center of gravity of a uniform lamina lies at_______________?

   A. the center of heavy portion
   B. the bottom surface
   C. the mid point of its axis
   D. all of the above
   E. none of the above

5. 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___________________?

   A. maximum
   B. minimum
   C. zero
   D. infinity
   E. same as the force applied

6. The algebraic sum of moments of the forces forming couple about any point in their plane is________________?

   A. equal to the moment of the couple
   B. constant
   C. both of above are correct
   D. both of above are wrong
   E. none of the above

7. If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either__________________?

   A. meet in a point
   B. be all parallel
   C. at least two of them must meet
   D. all the above are correct
   E. none of the above

8. The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of__________________?

   A. friction
   B. limiting friction
   C. repose
   D. kinematic friction
   E. static friction

9. A single force and a couple acting in the same plane upon a rigid body________________?

   A. balance each other
   B. cannot balance each other
   C. produce moment of a couple
   D. are equivalent
   E. none of the above

10. The forces, which meet at one point, but their lines of action do not lie in a plane, are called______________?

    A. coplanar non-concurrent forces
    B. non-coplanar concurrent forces
    C. non-coplanar non-concurrent forces
    D. intersecting forces
    E. none of the above