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

Related Mcqs:

1. 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

2. 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

3. The center of gravity of a triangle lies at the point of__________________?

   A. concurrence of the medians
   B. intersection of its altitudes
   C. intersection of bisector of angles
   D. intersection of diagonals
   E. all of the above

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. 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

6. The C.G. of a solid hemisphere lies on the central radius 3r_______________?

   A. at distance — from the plane base 3r
   B. at distance — from the plane base 3r
   C. at distance — from the plane base 3r
   D. at distance — from the plane base or
   E. at distance — from the plane base

7. 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

8. 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

9. From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate___________________?

   A. 0.5 cm
   B. 1.0 cm
   C. 1.5 cm
   D. 2.5 cm
   E. 0.25 cm

10. 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