A. coplanar
B. meet at one point ;
C. both A. and B. above
D. all be equal
E. something else
A. magnitude
B. direction
C. position or line of action
D. all of the above
E. none of the above
A. chain riveting
B. zig zag riveting
C. diamond riveting
D. criss-cross riveting
E. none of the above
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
A. three forces acting at a point will be in equilibrium
B. three forces acting at a point can be represented by a triangle, each side being proportional to force
C. if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
D. if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
E. none of the above
A. in the middle
B. at the tip below the load
C. at the support
D. anywhere
E. none of the above
A. downwards at its upper end
B. upwards at its upper end
C. perpendicular to the wall at its upper end
D. zero at its upper end
E. none of the above