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. The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal to__________________?

   A. the algebraic sum of the resolved parts of the forces in the given direction
   B. the sum of the resolved parts of the forces in the given direction
   C. the difference of the forces multiplied by the cosine of 9
   D. the sum of the forces multiplied by the sine of 9
   E. the sum of the forces multiplied by the tangent of 9

4. 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

5. A number of forces acting at a point will be in equilibrium if_________________?

   A. their total sum is zero
   B. two resolved parts in two directions at right angles are equal
   C. sum of resolved parts in any two per-pendicular directions are both zero
   D. all of them are inclined equally
   E. none of the above

6. 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

7. 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

8. The C.G. of a right circular solid cone of height h lies at the following distance from the base_____________?

   A. h/2
   B. J/3
   C. h/6
   D. h/4
   E. 3/i/5

9. A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation_________________?

   A. 3t2-lt
   B. 3t2+2t
   C. 6f-8
   D. 6f-4
   E. 6t2-8t

10. 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 sur-faces
    E. will be in equilibrium under all condi-tions