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

Related Mcqs:

1. Forces are called concurrent when their lines of action meet in________________?

   A. one point
   B. two points
   C. plane
   D. perpendicular planes
   E. different planes

2. Forces are called coplanar when all of them acting on body lie in __________________?

   A. one point
   B. one plane
   C. different planes
   D. perpendicular planes
   E. different points

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. W\an(a-)
   E. Wtana

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. The center 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