A. can raise the CG of the body but can not lower it
B. tends to lower the CG of the body
C. neither raises nor lowers the CG of the body
D. none of above
Related Mcqs:
- A system of copianar forces acting on a rigid body can be reduced to________________?
A. one force only
B. one couple only
C. one force and one couple only
D. none of the above - A block in the shape of a parallelopiped of sides lm x 2m x 3m lies on the surface. Which of the faces gives maximum stable block ?
A. 1 m x 2 m
B. 2 m x 3 m
C. 1 m x 3m
D. equally stable on all faces - A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
A. pyramid
B. prism
C. both equally stable
D. none of the above - A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________?
A. never meet
B. meet after 1 sec
C. meet after 5 sec
D. meet after 10 sec - When a body slides down an inclined surface, the acceleration of the body is given by__________________?
A. g
B. gsinG
C. g cos 6
D. g tan 6where ‘g’ is acceleration due to gravity and 9 is the angle of inclination of surface with the horizontal
- A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is_____________________?
A. 4
B. 6 7i
C. 8TC
D. 8 - The diagram showing the point of application and line of action of forces in their plane is called____________________?
A. vector diagram
B. space diagram
C. force diagram
D. funicular diagram - A heavy ladder resting on floor and against a vertical wall may not be in equilibrium if________________?
A. floor is smooth and wall is rough
B. floor is rough and wall is rough
C. both floor and wall are rough
D. both floor and wall are smooth - A system of copianar forces is in equilibrium when___________________?
A. force polygon closes
B. funicular polygon closes
C. both force polygon” and funicular polygon close
D. all the forces are concurrent - The condition of equilibrium for any system of forces in a plane is____________________?
A. that polygon of forces must close
B. that resultant couple must be zero
C. both (A) and (B)
D. none of the above
