Category: Strength of Materials

A. 0°
B. 30°
C. 45°
D. 60°
E. 90°

A. The C.G. of a circle is at its center
B. The C.G. of a triangle is at the intersection of its medians
C. The C.G. of a rectangle is at the inter-section of its diagonals
D. The C.G. of a semicircle is at a distance of r/2 from the center
E. The C-G. of an ellipse is at its center

A. magnitude
B. direction
C. point of application
D. all of the above
E. none of the above

A. j-2
B.2j-l
C. 2/-3
D.3/-2
E. 2/ -4

A. reducing the problem of kinetics to equivalent statics problem
B. determining stresses in the truss
C. stability of floating bodies
D. designing safe structures
E. solving kinematic problems

A. if any number of forces acting at a point can be represented by the sides
of a polygon taken in order, then the forces are in equilibrium
B. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
C. if a polygon representing forces acting at a point is closed then forces are in equilibrium
D. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
E. none of the above

A. coplanar
B. meet at one point ;
C. both A. and B. above
D. all be equal
E. something else

A. area of contact
B. shape of surfaces
C. strength of surfaces
D. nature of surface
E. all of the above

A. right angled triangle
B. equilateral triangle
C. square
D. circle
E. rectangle