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

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

In ideal machines__________________?

A. Mechanical advantage is greater than velocity ratio
B. Mechanical advantage is equal to velocity ratio
C. Mechanical advantage is less than velocity ratio
D. Mechanical advantage is unity

In actual machines_______________?

A. Mechanical advantage is greater than velocity ratio
B. Mechanical advantage is equal to velocity ratio
C. Mechanical advantage is less than velocity ratio
D. Mechanical advantage is unity

A cable with a uniformly distributed load per horizontal meter run will take the following shape________________?

A. Straight line
B. Parabola
C. Hyperbola
D. Elliptical

The necessary condition for forces to be in equilibrium is that these should be_________________?

A. Coplanar
B. Meet at one point ;
C. Both a. and b. above
D. All be equal

The algebraic sum of moments of the forces forming couple about any point in their plane is_________________?

A. Equal to the moment of the couple
B. Constant
C. Both of above are correct
D. Both of above are wrong

A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is \i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will____________________?

A. Remain horizontal
B. Slant up towards direction of pull
C. Slant down towards direction of pull
D. Unpredictable

Tangent of angle of friction is equal to__________________?

A. Kinetic friction
B. Limiting friction
C. Angle of repose
D. Coefficient of friction

Limiting force of friction is the__________________?

A. Tangent of angle between normal-reaction and the resultant of normal reaction and limiting friction
B. Ratio of limiting friction and normal reaction
C. The friction force acting when the body is just about to move
D. The friction force acting when the body is in motion