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 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

4. 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

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. If a suspended body is struck at the center 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

7. 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

8. 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

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. 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