If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella___________________?

Related Mcqs:

1. The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of__________________?

   A. forces
   B. independence of forces
   C. dependence of forces
   D. balance of force
   E. resolution of forces

2. Two non-collinear parallel equal forces acting in opposite direction__________________?

   A. balance each other
   B. constitute a moment
   C. constitute a couple
   D. constitute a moment of couple
   E. constitute a resultant couple

3. Two coplanar couples having equal and opposite moments_________________?

   A. balance each other
   B. produce a couple and an unbalanced force
   C. are equivalent
   D. produce a moment of couple
   E. can not balance each other

4. If three forces acting in different planes can be represented by a triangle, these will be in________________?

   A. non-equilibrium
   B. partial equilibrium
   C. full equilibrium
   D. unpredictable
   E. none of the above

5. 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

6. 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

7. 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

8. A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if____________________?

   A. the floor is smooth, the wall is rough
   B. the floor is rough, the wall is smooth
   C. the floor and wall both are smooth surfaces
   D. the floor and wall both are rough surfaces
   E. will be in equilibrium under all conditions

9. 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

10. The ratio of limiting friction and normal reaction is known as _____________________?

    A. coefficient of friction
    B. angle of friction
    C. angle of repose
    D. sliding friction
    E. friction resistance